JPH0481733A - Camera - Google Patents

Abstract

PURPOSE:To display and sets photographic information on the camera side even when an external electronic flash device is mounted by displaying the photographic information on a display part by the mounting of the electronic flash device and setting the information. CONSTITUTION:The camera is equipped with touch switches SC1 - SC9 which can input the photographic information by touching the part corresponding to the photographic information displayed on a display means consisting of an entire-surface dot matrix and a control means MC which detects whether the electronic flash device ST is mounted or not and controls the display means so that the photographic information regarding the electronic flash device ST can be displayed. Consequently, the mounting of the electronic flash device ST is detected to display its photographic information on the camera-side display part and the information can be set on the camera side, so the operation of the electronic flash device ST is made easy.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a camera, and more particularly to a camera that displays photographing information on a touch panel.

[Prior Art] As cameras become more sophisticated and automated, the amount of various photographic information that must be displayed is increasing. Therefore, it is necessary to efficiently arrange a display section for displaying photographing information and a setting section for setting photographing information on the body of the camera.

For example, Japanese Patent Application Laid-Open No. 63-128320 discloses a camera using an IC card in which a display section and a setting section are arranged separately.

Further, Japanese Patent Laid-Open No. 62-31837 discloses a camera in which a display section and a setting section using a touch panel are arranged separately.

[Problems to be Solved by the Invention] In the conventional camera as described above, the display section and the setting section are arranged separately on the camera body, so as the photographic information increases, the space occupied by them becomes are required. Moreover, not only does the space increase, but also the operation becomes complicated, which tends to result in poor usability, contrary to improved functionality.

Furthermore, in a camera equipped with an electronic flash device, it is not possible to display and set the photographing information of the device on the camera side. This also applies to cameras using IC cards, and it cannot be said that the electronic flash device is easy to use.

The present invention has been made to solve this problem, and an object of the present invention is to provide a camera that can display and set photographing information on the camera side even if it is an external electronic flash device.

[Means for Solving the Problems] A camera according to the present invention is a camera that can be equipped with an electronic flash device, and includes a display means that is made of a dot matrix on the entire surface and can display photographing information, and a display means. The camera is equipped with a touch switch and an electronic flash device, which are provided on the top so that the display can be viewed, and by touching the part corresponding to the displayed shooting information, the corresponding shooting information can be input. and a control means for controlling the display means so that photographing information regarding the attached electronic flash device can be displayed in response to the detection output from the detection means. It is something.

[Function] In this invention, by attaching the electronic flash device, the photographing information can be displayed and set on the display section.

[Embodiment] FIG. 1 is a circuit block diagram of a camera according to an embodiment of the present invention.

In the figure, a microcomputer μC (hereinafter referred to as "microcomputer") that controls the entire camera and performs various calculations has a clock function and is capable of measuring time. The focus detection circuit A F CT that performs focus detection is CC
D, an integral control circuit, and an A/D conversion circuit, which obtains focus detection information of the subject existing in the five focus detection areas described later, converts it A/D, and sends it to the microcontroller μC. Output.

The photometry circuit LM performs photometry on nine areas to be described later, A/D converts the photometry values, and provides the microcomputer μC as luminance information. The display control circuit DISPC inputs display data and display control signals from the microcomputer μC and causes the display section DISP on the top surface of the camera body to perform a predetermined display.

The film sensitivity reading circuit DX is the film cartridge D
The film sensitivity is read from the X code pattern and output to the microcontroller μC. The IC card CD is inserted into a card holder (not shown) of the camera. IC card CD
Controls various functions of the camera (AE) depending on the shooting situation.
There are two types of cards: program cards that automatically determine programs, AE modes, etc., and function cards that add special functions. In this embodiment, as a program card, a sports card that determines an exposure suitable for photographing a sports scene is disclosed, and as a function card, an auto-bracketing card that automatically controls exposure shift photography is disclosed, but the present invention Of course, this is not limited to only these cards. These cards will be explained in detail later.

An interface IF (see FIG. 43) is provided between the external flash ST (see FIG. 44) and the camera's microcomputer μC. The camera is also equipped with a built-in flash (see FIG. 43).

A lens circuit LE provided in the lens outputs information specific to the interchangeable lens to the microcomputer μC of the camera, and also drives a zoom motor provided in the lens (see FIG. 46).

The lens drive control circuit LECN drives the photographic lens based on focus detection information. The shutter control circuit TVc controls the shutter based on a control signal from the microcomputer μC. The aperture control circuit Avc controls the aperture based on a control signal from the microcomputer μC. The winding control circuit MD controls film winding based on a control signal from the microcomputer μC. The imprint circuit IP inputs imprint data from the microcomputer μC and imprints the data onto the film.

The backup power supply EBU is used for the clock circuit and microcontroller μ.
Power is supplied to the internal RAM of C.

The charging diode D1 and the backup capacitor C1 are at the power supply potential ■. 0 and ground potential.

Next, each switch provided in the camera will be explained.

Switches sap and SDN are switches for changing aperture and shutter speed.

Switch S. ALL is a switch for calling a menu for setting data for each mode, which will be described later. The switch S is used to perform preparatory operations necessary for photographing, such as photometry and AF operation, and is turned on by the first stroke of a release button (not shown). The release switch S2 for photographing is a switch that is turned on at the second stroke (deeper than the first) of the release button.

Switch S+NF sets the built-in flash function to 0N10F.
F. When the switch SMI is in exposure mode or manual mode (hereinafter referred to as rM Momoko),
Operation of this switch and up switch SUP or down switch S. This is a switch that changes the shutter speed with the operation of . When the switch SM□ is not operated in the M mode, the aperture value is changed by operating the up switch SUP or the down switch SDN.

By turning on the back cover closure detection switch SRC, which turns ON when the back cover is closed and turns OFF when the back cover is opened, the microcomputer μC executes an interrupt routine to be described later. The so-called synchro contact
It turns off when the release member (not shown) is charged. In Figure 1, the line W common to each of the above switches
l is connected to the ground potential GND.

Touch panel switch S. , ~S69 are switches provided on the display section DISP on the main body, and are arranged in the configuration shown in FIG. 2A. Below this touch panel switch (transparent), there is a liquid crystal display consisting of a dot matrix, and the display under the switch changes depending on the various setting modes. The functions of 1 to S69 also change depending on the setting mode. FIGS. 2B and 2C show specific display states of the touch panel (DP-1 to DP-17).
). Details will be described later.

If you touch any part of the display that is completely off, the switch S will function as the main switch SM. Any one of 1 to sc9 is ONL
, as shown in FIG. 3, executes the interrupt SMINT routine when the main switch is turned on. Note that FIG. 5 shows information stored at each address of the RAM in the microcomputer μC.

Among them, Fig. 5A shows the address for storing necessary information in the display control circuit DISPC, and Fig. 5B shows the address for storing the information necessary for the display control circuit DISPC.
FIG. 5C shows addresses for communication with the card; FIG. 5C shows addresses for communication with the camera and flash; and FIG. 5D shows addresses for communication with the camera and lens.

First, a subroutine is executed by turning on the switch (#5).

FIG. 4 is a flow chart showing the contents of this subroutine. Referring to the diagram, first touch switches S01 to S01
Disables the above S~IENT interrupt by turning C9 ON,
In order to change the display data from completely off to standby display, address 00M (H indicates hexadecimal) of the RAM in the microcomputer is set. - Set the b7 bit to OLH and set the 5th bit to OLH.
Output the display data shown in Figure A to the display control circuit DISPC ($100-110). RAM address 00H
The relationship between information and display is shown in FIG.

(Details of each display will be described later.) The standby display is
It is displayed as shown in DP-1 in Figure B (details will be described later). Then, start boosting the external flash (PL (flash) ON data is set (30
H's. →1) L (#115), in order to send these signals and input data from the flash,
Data communication I with L is performed (#120), and the camera is
Show that it is in the N state (reset the OFF data of the camera output to the lens (bo → 0 in 2CM) and (#
125) Return.

FIG. 6 is a flowchart of the display data output, and FIG. 7 is a flowchart showing FL data communication I.

In display data output, first, the terminal C5DIS is used to indicate to the display control circuit DISPC that it is in the data communication mode.
Set P to L level (#130) and perform serial data communication SI○ 16 times, that is, address O of RAM
The information of OH to OF is outputted to the display control circuit DISPC (#135), and the terminal C3DISP is set to H level and returned (3130 to 140).

In FL data communication ■, first reset the data indicating exposure control (b1 of 30H → 0), momentarily set the terminal C3FL to L level to indicate the data communication mode to the flash, and transfer the data from the camera to the RAM address 30H. Perform serial communication SIO once to output (#145
~155).

Then, the input/output switching circuit (see FIG. 43) is switched to the input side. Next, serial communication SIO for inputting data from the flash is performed three times, the input/output switching is switched to the output side, and the process returns (#160.162). At this time, the data input from the flash is 35. ~37. This is the content that is stored in the memory.

Returning to FIG. 3, after completing the subroutine for turning on the main switch SM (#5), it is determined whether or not the shooting preparation switch S is turned on (#10). If it is turned on, the process proceeds to step #15. Proceed to execute the SL ON subroutine and turn on the switch S.

Flag S indicating that any one of 1 to So9 is turned on
. Reset NF. Then, set the timer flag (timer F) and return to step #10 (#15, #2
0).

FIG. 8 is a flowchart showing the S, ON subroutine. In the figure, first, a flag (call F) indicating the call mode (described later) is reset (#180).
. Next, lens data is input and communication I with the IC card is performed (#185.190).

FIG. 9 is a flowchart showing a subroutine for inputting lens data, and FIG. 10 is a flowchart showing the contents of card communication I.

In Fig. 9, first, input mode data is set (2
A. Nosu. →1) and set the terminal C5LE to L level to indicate the data communication mode to the lens (J300.30
2). Then, serial communication is performed once to output 1 byte of data from the camera, then serial communication is performed 5 times to input 5 bytes of lens data, and terminal C
Set 3LE to H level and return (J305~3
15). This lens data is from RAM address 20H.
24. This is the content that is stored in the memory. Note that the focal length data is set to 0 DFI for display purposes, which will be described later.

It is also stored in ~b7.

In card communication I shown in FIG. 10, data indicating communication mode is set to 408 nos, b, terminal C3CD is set to L level to indicate card data communication mode, and data indicating card communication I (40H) is set. is output through serial communication once, and then 1 byte of data is input from the card (#330 to 340). This data indicates the presence/absence of a card and the type of card, and is stored at address 41H of the RAM. Then, it indicates the end of the data communication mode (terminal C8CD is set to H level, and it is determined from the input data whether or not there is a card. If there is no card, the card presence data is reset.
-o) If there is a card, set the card presence data (OCH b5-1) and set the card type to O.
Set to b5 of BH and return (1345~#3
60).

When the card communication I routine is completed, the process returns to FIG. 8 and performs photometry and autofocus AF (#195.
200). These operations will be explained based on FIG. 11 and FIG. 12.

FIG. 11 is a flowchart showing the photometry routine. Note that photometry areas 1 to 9 are as shown in FIG.
They are arranged so that the shooting screen is divided into nine parts.

Returning to Fig. 11, first, from the photometric circuit LM, each work area 1~
9 A/'D converted digital data BV1-B
Input V9 and judge the set photometry mode (
#450, 455). This determination is based on RAM address 07
This is done based on the data of b5 to b7 of H. When in auto mode, the control photometric value BVc is the average of all photometric values, BVc = (BV1+BV2+・+BV
9) Calculate by 9. Next, the deviation ΔBV between the control photometric value BVo and the central photometric value BV5 is determined from ΔB V =B V c B V 5 and the process returns (#460, #465).

If the photometry mode is the first mode, the control photometry value BVo is determined as follows from the photometry values obtained from the photometry areas on the right side of the screen and in the center of the screen.

In other words, BVc = (BV3+BV5+BV6+BV9)/4 If the photometry mode is the second mode, it is average photometry, and the control photometry value BVc is BVc = (BV1+-+BV9)/9 If the photometry mode is the third mode. , the control photometric value B V c is determined from the photometric values obtained from the photometric areas at the lower side and the center of the screen as follows. In other words, BVc = (BV5 + BV7 + BV8 + BV9)/4 If the photometry section is in the 4th mode, it is spot photometry, and BVc = BV5 If the photometry mode is in the 5th mode, the photometry obtained from the photometry areas on the left side of the screen and in the center of the screen. The control photometric value BVc is determined from the value as follows.

In other words, BVc = (BV1+BV4+BV5+BV7)/4 (#470-495).

Note that the data Bvc is stored at address 43° of the RAM.

FIG. 12 is a flowchart showing AF control.

Referring to the figure, first determine whether the switch S1 is ON or not (#500). If it is not ON, return; if it is ON, switch SQ provided on the lens is turned ON to set the AF mode. A routine for determining is executed (#502). In this embodiment, focusing control is normally performed by one-shot AF,
Focus detection is performed in a selected focus detection zone (spot, middle, wide, etc., all of which will be described later), and focus lock control is not performed. Therefore, when the switch SQ provided on the lens is turned on, continuous AF, spot AF, and focus lock can be performed for each of the above-mentioned controls.

Which of these controls is executed when switch SQ is turned on is determined by b6 of RAM address 09H.
, b7 (this will be described later with reference to FIG. 39).

FIG. 13 is a flowchart showing a routine for determining the AF mode by switch SQ.

In the figure, first, it is determined whether the switch SQ is ON or not (#590), and if it is ON, the switch SQ is ON.
Set flag SQF to indicate that
95). In the method described later, the mode selected from continuous AF mode, spot AF mode, and focus lock mode is set to 09.09. If the continuous AF mode (C-AF) is selected based on the data in b6b7, the content of the signal AFM indicating the current focusing control mode, that is, the one-shot AF mode is changed from the previous one. Assign to the signal LAFM indicating the focusing control mode and set the contents of the register AFM to continuous AF mode (C-AF) #6
05.610), return.

If the selected mode is spot AF mode (SPOT), the signal AFZ (b3b of 07H) indicating the current AF zone
4) to the signal ALFZ indicating the previous AF zone, and the contents of the current AF-/-on signal AFZ are assigned to the spot A.
Return as F mode (#615.620).

If the mode is selection mode or focus lock mode (F-L), a flag (FLK) indicating this is set, lens movement is stopped, and the process returns (#625.630).

When switch SQ is OFF, proceed to step #635;
Determine whether flag SQF is set. If it is not set, it is assumed that there is no operation on switch SQ and the process returns.

If it is set, it is assumed that switch SQ has changed from ON to OFF, and the flag SQF is reset, and switch SQ
In order to return to the mode before the operation was performed, the selected mode is determined from b5 and b6 of 088 (#640.
645). If the continuous AF mode has been selected, the focusing control mode (LAFM) before the switch SQ was turned on is set as the current focusing control mode (AFM) and the process returns (#650).

If the spot AF mode is selected, the AF zone (LAFZ) before the switch SQ was turned on is set as the current AF zone (AFZ) and returns (:655).
). If focus lock mode has been selected, reset the flag (FLKF) and return (
#660).

Returning to FIG. 12, when the subroutine for turning on the switch SQ is completed, it is determined whether or not the flag AFEF indicating focus is set, and if it is set, the AFM determines whether the AF mode or one-shot AF is set. The determination is made based on the signal (#505, 510).

If it is one-shot AF (YES in #510), return. If flag AFEF is not set or it is not one-shot AF, step #515
Proceed to step 2, perform an integral data dump of the image sensor,
Defocus amount DFI to DF of each focus detection area 1 to 5
5 is calculated (#515-525). Note that focus detection areas 1 to 5 are arranged as shown in FIG. 52.

Next, the AF zone is determined (#530).

zone or the first zone (spot), the control defocus amount (DF) is set to the defocus amount (DF3) of the focus detection area 3 (1535).

If the zone is the second zone (middle), the maximum defocus amount in focus detection area 2.3.4 represents the closest subject, positive means front focus, negative means rear focus. Let . . . be the control defocus amount DF (J540). If the zone is the third zone (wide), the maximum defocus amount of all the focus detection areas is set as the control defocus amount DF (#545). After calculating the control defocus amount DF, the process proceeds to step #550 (#545). Then, the obtained controlled defocus amount D
It is determined whether F is less than or equal to a predetermined amount, and if it is less than or equal to a predetermined amount Cv, a flag AFEF indicating focus is set and the process returns (#550.555).

When the defocus amount DF exceeds the predetermined amount Cv (#5
50 (NO), determine whether the focus is locked using the focus lock flag FLKF #560
), if focus is locked (FLKF=1), return as is.

If the focus is not locked (FLKF-〇),
Reset the flag AFEF and set the defocus amount DF to the defocus lens conversion coefficient KL (RAM address 2).
2. The lens driving amount N is obtained by multiplying the amount by the value (stored in memory), the lens is driven based on this, and the process returns (#565 to 575).

After completing the above AF control, the microcomputer μC controls the auto program zoom APZ shown in Fig. 8 (#205).
.

FIG. 14 is a flowchart showing the subroutine of this control.

First, the mode of APZ is determined from the data of b6b7 of OBH (#670). If the mode is OFF, the process returns immediately. That mode is P (program)
In the mode, the photographing magnification for the subject distance D■ is determined in advance, and therefore the focal length f is determined for the distance Dv (#675). This is the subject distance D
It is sufficient to store the focal length f based on the imaging magnification in a memory such as a 20M table, with v as an address.

Next, for upper body mode (2), set the shooting magnification β1 to 1.
/60, f=β from this β1 and subject distance Dv
The focal length f is obtained as 1.Dv (#680). In the whole body mode (÷), set the imaging magnification β2 to 1/100,
From this photographic magnification β2 and subject distance Dv, f=82・D
The focal length f is obtained as v (#685). However, the subject distance D7 is input from the lens (described later) and is stored at the RAM address 23. This is what is stored in memory. Note that the focal length f obtained by the above calculation is stored at address 2BH of the RAM for driving the zoom lens.

After obtaining the focal length f in the above step, it is determined whether a flag APZF indicating this APZ mode is set (#690). If the flag APZF is not set, the flag is set and the variable N is set to 0, and after outputting the lens data, 1 is added to the variable N to set this value to N and the process returns (#695 to 710).

Here, the flow of lens data pressure is shown in FIG. 15 and will be explained.

First, set the data from the camera to the lens indicating that it is a camote to bθ of 2AH, and then connect 1 terminal C3LE.
is the L level. Then, perform SIO once again and complete 2 AH. -output the data of b7, then 2B,
, 2C, after performing SfO twice and outputting it,
Set terminal C3LE to H level and return (#169
0-1710).

Returning to FIG. 14, when the flag APZF is set, it is determined whether N=5 or not (#715). If N=5, the process goes to #700, and if N=5, the process goes to step #710, where the variable N is incremented by 1. This is because if the zoom lens is driven every time the distance is measured, the zoom lens is constantly being driven, which does not give a good feel, so the zoom lens is driven once every five distance measurements. Next, based on the lens data output (28H), the lens drives the zoom lens, and then
Return to the flow shown in the figure (#715). Note that the zoom drive motor is provided on the lens side (see FIG. 46).

After the above APZ control is completed, a routine for reading the film sensitivity SV from the DX coded film is executed.

FIG. 16 is a flowchart showing this routine.

First, the film sensitivity S■ is read from the film, and the film sensitivity Sv data is stored as 088. - Set to b5. This film sensitivity S■ is 09. The memorized correction amount ΔSV (described later) is added to bo'=b4 to obtain a new film sensitivity S■ (#925 to 935). Then, set this film sensitivity SV to 44H bo=b7 (for output to card) (#937) and return to FIG. 8.

Returning to FIG. 8, routines for card communication (2) and PL data communication (I) are performed (#210, 215).

FIG. 17 is a flow chart showing the routine of card communication (2). First, data indicating the communication mode 40. No, set to b+, and set terminal C5CD to L level to 1.
It performs serial communication twice and outputs 40H data. Next, serial communication is performed three times, and the terminal C3CD is set to H level and returns (1720-735). In the above three serial communications, RAM address 438
~ Information stored in 45H, i.e., photometric data B
Vc1 film sensitivity Sv1 card function 0N10FF (
(described later), presence/absence of release (0N10FF of S2), dew ratio shift amount and number of shots of the auto bracket card (described later), and function data of 0N10FF of switch S1 are output from the camera to the cart. The explanation of the FL data communication system is omitted since it has already been done (FIG. 7).

Returning to FIG. 8, after the above FL data communication I is completed, a flash mode routine is executed next. This determines the combination of use of the built-in flash and the external flash depending on the ON10FF state of the built-in flash switch and whether or not the external flash is attached.

FIG. 18 is a flowchart showing a subroutine for determining this combination.

First, it is determined whether the built-in flash's light emission switch SIN is turned on or not, and the switch SI9. If it is ON, start voltage boosting and set terminal B5CN to H level.
Data entered indicating whether an external flash is installed (
35H) (#735.740). When an external flash is attached, it is determined whether the light emitting switch of this flash is in the ON mode based on the data of b4 of OEH (#745). Switch or ON
mode (b4=1 in 04H), returns with flash mode FLM set to "0" (both ON) (#750). When the external flash is not installed or the external flash switch is in OFF mode (OEH b4 = 0), return the flash mode FLM as "1 (built-in flash only)"(#755). .Built-in flash switch OFF
If it is F, the terminal B5CN is set to L level to stop boosting, and it is determined based on the input data whether an external flash is attached (#760.765). If an external flash is attached, press the flash switch or O.
Determine whether it is in N mode or not, and if it is ON, set the flash mode FLM to "2" (external FL only)
(#770.775). When an external flash is not installed or its switch mode is OFF, set the flash mode FLM to "3".
Returns as (no flash) (J 7
80).

Returning to FIG. 8, once the flash mode is determined, a routine is executed to input data for exposure control from the card. FIG. 19 is a flowchart showing this routine.

First, data indicating card communication ■ is set in bobl 408, terminal C3CD is set to L level, and information 40H is output from the camera to the card (#1030 to 1035
).

Next, input 3 bytes of data from the card to RAM addresses 498 to 51H, set terminal C3CD to H level, and return. Range operations (
FL operation) (#225, 230)
.

FIGS. 20 and 21 are flowcharts showing each of these subroutines.

First, in the AE calculation, focal length data f(
21H), the camera shake limit speed TVf is obtained (#800). Its value is the reciprocal of the focal length. Then, the exposure value E■ is EV = S V y B V c + A V .

The control exposure value is determined by adding the exposure correction amount ΔEV (#810.815). However, Avo is the maximum aperture value of the lens stored at address 20H in RAM, and the exposure compensation amount ΔEV is 03)l as described later.
It is stored in b3 to b7 of. Next, set the AE mode to 03. Nosu. Determine from the data of bl. program(
P) mode, the photometry mode is auto mode (see Figure 11), so it is determined whether the brightness difference ΔBV between the spot photometry value and the average photometry value exceeds 2, and the brightness difference is 2.
If it is below, the camera shake limit speed TVf and the aperture value A V
The sum EVf with o is determined, and the magnitude is compared with the obtained control exposure value EV. If EV≧EVf, assuming that camera shake will not occur, the shutter speed TV and aperture value AV are determined from a predetermined program diagram based on the control exposure value EV, the flag FLF indicating flash emission is reset, and the process returns to step #865. Go forward (1825-845). If the brightness difference exceeds 2 in step #825, it is considered a backlight condition, or in step #835, EV<EVf
If so, it is determined that there is a high possibility that camera shake will occur, and the process proceeds to step #850. Then, the flag FLF indicating that flash emission is necessary is set, the shutter speed TV is set to the synchronized TVx (1/125), the aperture value AV is determined as AV=EV-TV, and the process proceeds to step #865 (# 850-86
0).

If the AE mode is the shutter priority (S) mode, the aperture value AV is determined by EV-TV, and it is determined whether the flash mode FLM is "3" . . . flash non-emission. If the mode is not “3”, proceed to step #850;
Performs control for flash emission and selects mode or r3J.
If so, it is determined that the flash is not emitted and the process proceeds to step #865 (3890, 895).

If the AE mode is aperture priority (A) mode, calculate the shutter speed TV by EV - AV and set the flash mode FL.
It is determined whether M is "3". If the mode is "3", immediately step #86 as the flash is not emitted.
Proceed to step 5 (#900.905). On the other hand, the mode is "3"
Otherwise, set the shutter speed TV to the synchronized speed TVx,
Set the flash light emission flag FLF and proceed to step #
Proceed to 865 (#910.915).

If it is manual mode, that is, M mode, it is determined whether the flash mode is FLM or "3J". If the mode is "3", immediately go to step #865, and if the mode is not "3". Proceed to step #915 (
#920).

In step #865, it is determined by OCH b5 whether there is a cart or not, and if there is a card, it is determined whether the function is ON or not by OCH b6 (#865.870
). If the function is on, the shutter speed (TVco...49)1) and aperture value (AVC
D・”50H) and the shutter speed for control (T
V...01H) and aperture value (AV, 02.) (#875.880). If there is no card or the function is OFF, return immediately.

Next, in FIG. 21, first, based on the data input from the card, the flash off signal (51H) is activated.
If it is not off, determine whether the flash mode is FLM or "3" (non-emission) (#
950.952). If the flash mode is not "3", it is determined whether the flash mode is "1" (only the built-in flash is ON) (#955). If the flash mode is "1", the minimum light output of the built-in flash (
IVmin) (memory in the camera) to the shortest flash linkage distance DVmin = DVmin=
Calculated by I Vmin + 5V - AV, and the longest flash photography linked distance (DV
max) as DVmax=IVmax+5V-AV and proceed to step #990 (#980.985
). In addition, DVmin and DVmax are 048.
b6.05H. -b6 respectively. If the flash mode is not "1" in step #955, the process advances to step #960. At this time, at least the external flash is attached and turned on, and in this embodiment, if the external flash can emit light, priority is given to the external flash. That is, even if the built-in flash is allowed to emit light, the built-in flash is prohibited from emitting light.

Therefore, in step #960, the shortest interlocking distance DVmin of the flash from the minimum light emission tlVmin' input from the external flash is determined as DVmin=IVmin' +
Calculate with 5V-AV. And H/L (H...can fire up to the maximum flash output, L...4 of the maximum flash output)
OEH b
Determine based on the o signal, and if it is L mode, the maximum light emission amount rV
The value obtained by subtracting 4 from max' is set as the maximum light emission amount, and the process proceeds to step #975 (#970). H at step #965
If it is determined that it is a mote, the process also proceeds to step #975. Step #975 is the maximum light emission amount IVm, ax
The longest interlocking distance DVmax is determined from ', DVmax=IVmax' +5V-AV, and it is determined from the flag FLF whether or not flash emission is necessary (#975.990).

If flash emission is required here (FLFl), data 04H b7°, 05 to turn off the interlocking range display.
．． Set b7 to "0" and return (:1005
．． 101.0). In step #950, the data from the cart is Franche control mode, or in step 952, the flash mode FLM is "3", or in step #990, it is determined that flash emission is not necessary (FLF = 0), all #10
Proceed to step 15, set bl of <048 and bl of 05H to turn off (do not perform) the display of the interlocking range, and return (#1015.1020).

When the FL calculation is completed, the process returns to FIG. 8 and outputs data to be displayed on the display section DISP to the display control circuit DISPC (#240) (see FIG. 6). Then, it is determined whether the release switch S2 is turned on (:24
5). When the switch is ON, it is determined whether or not there is release prohibition data among the data input from the card (determined by the signal of 51H) (:247
).

Flag AF indicating focus when there is no release prohibition data
Determine whether EF is set (#250)
. If set, indicates whether it is in self mode or not.
7. The determination is made based on the data of bIb2. If it is in self mode, wait for about 10 seconds, if not in self mode, skip step #260 and proceed to step #2.
Proceed to 65 (#255.260). and exposure control A
E. After performing the 1-frame winding routine, check 07. whether or not it is continuous shooting mode. It is determined by b11b2.

If it is not continuous shooting mode, wait for the shooting preparation switch S1 to turn OFF, and return when it turns OFF (6265)
~280). In step #275, if the continuous shooting mode is selected, it is determined whether the mode is the low-speed continuous shooting mode (#285). If it is the low-speed continuous shooting mode (3 frames per second), the process waits for 300 m5ec and then proceeds to step #185; if it is not the low-speed continuous shooting mode, it is the high-speed continuous shooting mode and the process immediately proceeds to step #185. If the release switch S2 is OFF in step #245, or there is release prohibition data from the card, or if there is no focus in step #250 (AFEF=O), the process immediately returns.

FIG. 22 is a flowchart showing a subroutine for exposure control.

First, the microcomputer μC performs FL data communication with the flash (#1050). Then, the camera side sets the flash control mode (FL control data set) based on the set flash control data (OEM bo=b4), and controls exposure, aperture, and shutter...
and returns (#1055.1060).

FIG. 23 is a flowchart showing the subroutine of FL data communication (2).

First, input data indicating that it is in exposure control mode to 308.
Set BL to C5FL, set C5FL to H for a moment, and set address 3.
0. Output the data to flash and return (#
1065-1075).

FIG. 24 is a flowchart showing the FL control data set subroutine.

The data indicating these modes is the address OEM's bo"
'-b4, and the Franche control mode is set based on this data. First, it is determined whether it is rear curtain synchronization or not using the OEH signal, and if it is rear curtain synchronization,
The terminal STP is set at H level, and if it is not rear curtain synchronization, the terminal STP is set at L level and the process proceeds to step #1095. In step 91095, it is determined whether it is manual (full flash) or auto (dimming) using OEM's b2, and if it is auto, the terminal STP is set to H1.
Set to L and proceed to step #1110 (#1095 to 1
105). In step #1110, it is determined whether spot dimming is to be performed or not based on the OEM b3 data. If it is spot dimming, set the terminal SP to L1 and if it is not spot dimming, set the terminal SP to H level and proceed to step #1125 (
#1110-1120). In step #1125, it is determined from the flag FLF whether flash emission is necessary. If flash emission is required (FLF=1)
, set the terminal LE to L level if H1 flash emission is not required, and proceed to step #1140 (#1125~
1135). In step #1140, it is determined whether the flash mode is "1"...built-in flash ○N1 external flash is not attached or OFF.... If the mode is "1", the terminal INFL is set to H level, and the mode is "1".
If it is not 1, return as L level (#114
0-1150). Note that each terminal will be explained later based on FIG. 43.

FIG. 25 is a flowchart showing the winding control in step #270 of FIG.

First, wind one frame, and when the winding is complete,
It is determined whether or not the count-up mode is on based on the data in b7 of OCH. If the count-up mode is set, the count N indicating the number of films is set to N+1, while if the count-down mode is set, the count N is set to N-1 and the process returns (#1160 to 1175). The number of films is determined by the RAM address 06. Nosu. -b6 is also stored.

Figure 26 shows the interrupt (
2 is a flowchart showing the RCINT) routine.

First, wind the film 3 frames, read the number of films from the DX-coated film back cover, and enter N. shall be. Next, it is determined whether or not the count-up mode is on.
If the count up mode (OC[(b7=1), then N=1, and the film count down mode (OCH
b7 = 0), then N = NF. (#1180 to 1200).

Returning to FIG. 3, in step #10, if the shooting preparation switch S1 is OFF, the flag APZF indicating the APZ mode is reset, and the call mode...a mode for setting various data, shooting mode, etc. It is determined whether the switch that calls Scal is turned on (C) (#25.30). Switch Scal 1 is ON
If it is, execute the call ON flow indicating that it has been turned on (#35), and transfer the display data to the display control circuit DI.
The call mode is output to the SPC, a predetermined call mode is displayed on the display section DISP, and the process proceeds to step #20 (#50).

If the switch Sca Il is OFF, it is determined whether a flag (call F) indicating the call mode is set. If the call flag is set, execute the flow as set mode, output display data, and proceed to step #20 (#40.4
5.50).

FIG. 27 is a flowchart showing the call ON subroutine. First, a flag (call F) indicating that switch 5call is turned on is set, and card communication is performed (J12051210). Based on the data input from the cart through card communication I, it is determined whether the card is installed or not. If it is installed (OCH b5 = 1), determine whether the card function is ON, and if it is ON (OCH bs = 1), determine whether the auto bracket card is installed. Determine (#12
15-1222). If the auto bracket card is not installed (OBH b5 = 0), set b5 and b6 of address 08I4 to indicate call mode ■, and change the display to call mode ■ (address 00H).

-b7=14H), and the flag Sc N is set when setting data in call mode (details will be described later).
F is reset, a flag AEBF indicating the setting of AE bracketing (gradual exposure photography) is reset, and the process returns (#1225 to 1229). On the other hand, the card is not installed (O
CI (b5-0), card function or 0FF (OCR b
6-0), or an auto bracket card is installed (O
If b5 of BH = 1), set b5 and b6 of address 08H to indicate call mode I, set the display to call mode I (6 to b7 of 00H = 12H), and set flag 5cNF and flag C# 1230.1232.1228.1 to reset AEBF and return
229). Note that details of each call mode will be described later.

FIGS. 28A to 28D are flowcharts showing the set routine of step #45 in FIG. 3.

First, check whether you are in call mode ■ or not. If the call mode is not ■, call mode I or call mode): rl, and the display on the display section DISP will be DP-2 (call mode I) or D in Figure 2B.
P-3 (call mode ■) is set, and touch switch S instructs to change the call mode. 9 is ON or not, and if it is ON, this switch S. A flag (Sc g○NF) indicating that 9 has been turned on is set and the process returns (#1235 to 1245).

Switch S. When 9 or OFF, the above flag S.

9ONF is set.

If set, switch S. 9 or ON to OFF
Therefore, assuming that the call mode is changed, it is determined whether the current call mode is ■ or not based on the data of 088 and b6. If the call mode is ■, the call mode is set to ■, and if the call mode is ■, the call mode is set to ■, and 08.4 b5b6.00H are respectively set. - Change b7 and set flag S. 9Reset ONF and return (#1250 to 1270).

If the call mode is selected in step #1235, or if the flag 5c9ONF is not set in step #1250 (meaning that switch Sc9 has never been operated), the process proceeds to step #1275, and the call mode is determined. 08. Determine by b5b6.

Next, route A is selected according to call mode, ■, and ■.
,B.

Proceed to C.

First, route A for call mode I is shown and explained in FIG. 28B.

In call mode I, the switch configuration and display are as shown in DP-2 in FIG. 2B. To explain this control,
First, switch S. , is ON, data (o4H) is set in bo to b7 of 00M as exposure compensation (+/-) mode, and the process proceeds to step #1370. When switch SC1 is OFF, switch S. When 2 is ON, the drive mode is 00H. - Set data (06H) in b7 and proceed to step #1370 (#1280 to 12
92). Switch S. 2, and S. 2 is OFF, determine whether the card is installed using b5 of OCH, and if it is not installed (b5 = 0), step #1
Proceeding to 305, data indicating the card mote is prevented from being set to OOH. If switch SC3 is ON when the card is installed (b5-1), data (O
BH) and proceed to step 31370 (#
1295-1305). If no card is installed, or even if a card is installed, switch S03
is turned off, then switches SC4 to
Check the status of SCa. Switch S here. When 4 is ON, 00 is selected as the selection mode.
H's. When data (ODH) is set to ~b7 and switch SC7 is ON, b of 008 is set as AE mode.
Set data (05,) in 0 to b7 and press switch Sc♂
is ON, b0 to b of 00H is set as ISO mode.
Set data (03,) to 7 and proceed to step #1370.
Proceed to (#1310-1330). Step #1370
Here, flag S indicates that one of the switches so, to Sc9 has been turned on. Set NF and return.

Which switch S. , ~SC9 are also not turned on, step #1332 turns on switches S61~Sc9.
Flag 5cN indicates whether any of them were turned on last time.
Judge with F. When it is not turned on (SoNF=
0) returns immediately (11332). If any switch was previously turned on (SoNF=1), the value is 00□. -b7 data is determined, control is performed according to the mode, and the process returns (the details will be described later) (#1335 to 1365).

The explanation of route B showing the control of call mode ■ is shown in Section 28C.
Follow the diagram. The display is as shown in DP-3 of FIG. 2B.

In the figure, first is the switch S. , is ON or not, and if it is ON, set data (09H) to 00)1, -b7 as the imprint mode and proceed to step #1485 (#1380.1385)
. Switch S. ,but.

If it is FF, determine whether an external flash is installed or not using data (35H), and if a flash is installed, switch S. 2 is turned on. If it is ON, data (IIH) is set to b0 to b7 of 00□ as a flash mode, and the process proceeds to step::1485 (#1390 to 1400).

If no flash is attached or switch Sc2 is not turned on, step #1405
Proceed to. After step #1405, RAM address O
OH Nosu. -b7, switch S; When 3 is ON, data OAH is set to APZ mode, and switch S is set. 7 is ON, data 07. is set as the AF zone mode. When switch 5CIII is ON, data 081. is set as photometry zone mode. Set I and proceed to step #1485.

When the switch SCS is turned on, halt control is performed to turn off the power to the camera, and the process returns.

FIG. 29 is a flowchart showing this halt control.

First, reset the flag (call F) indicating the call mode, enable the interrupt SMINT when the main switch is ON (any of switches Sc1 to SC9 is ON), and set the mode signal (00H - bO) to all-lights-off mode. (00,)
and output the display data (#1650 to 1665
).

Next, set the data that indicates that the camera is turned off, that is, turn off the lens, to bO of 2CI, output the data to the lens, and set the data that turns off the flash to bo of 308. , performs data communication (■) with the flash and returns (#1675-1.
685).

Returning to FIG. 28C, switch S. If 5 is OFF, flag S. Determine whether NF is set or not,
Flag S. If NF is not set, return; if it is set, determine the mode based on the data of 00H, control the mode set in call mode ■, and return (#1445 to 1480)
. Note that control of the set mode will be described later. In step #1485, the switch S. If any of the switches S1 to So9 (excluding switch S.5) is turned on, the flag S is set. Set NF and return.

Call mode ■ is a mode that does not require changing settings when the card is installed, except for modes such as AE mode, etc., which makes it easy to understand what is necessary for setting (changeable). It is. This display is D in Figure 2B.
P-4, and its control routine is shown in FIG. 28D.

First, it is determined whether the switch Sc1 is turned on. When it is ON, data (04H) is set to the mode signal (00H - bO) as exposure compensation mode, and the process proceeds to step #1625 (#1490.149).
5). Switch SC7 is OFF, and switch S. 2
is ON, set data (06H) as the drive mode to the mode signal (b6 to b7 of 00H) and proceed to step #1625 (#1500.15
02).

Switches Sc1 and S. If 2 is OFF, it is determined in step #1505 whether or not a card is installed. If the card is installed, switch S. 3
Determine whether or not is turned on, and if it is turned on,
Set data (OBH) as the card mode to the mode signal (00H bo=b7) and step #1625
C# 1505-1515).

If the card is not installed or switch S0
3 is OFF, switch S. 4 is turned on (#1520).

The mode signal (OOH No.-b7) is set to switch SC4.
When is turned on, data (0) is set as ISO mode.
3H), switch S. When 5 is ON, AP
Data (OAH) as Z mode, switch S. 6 is ON, the data (0
9) Set each of 1) and proceed to step #1625 (#1520 to 1545).

Switch S. 6 is OFF, it is determined whether an external flash is attached. If a flash is installed, switch S. 7 is turned on or not, and switch S is turned on. If 7 is ON, data (11,) is set to the mode signal (00H -bJ) as flash mode, and the process proceeds to step #1625 (
#1550-1560). If no external flash is attached or if switch SC7 is OFF, proceed to step #1565 and switch S. It is determined whether or not 9 is turned on. If it is turned on, halt control is performed to turn off the main switch and the process returns (#1565.1570).

Switch S. If 9 is OFF, flag S.

It is determined whether NF is set or not, and if it is not set, it is assumed that no operation has been performed and returns immediately (#1575). It is determined whether flag 5CNF is set, and if it is not set, it is assumed that no operation has been performed and the process immediately returns (#1575).

Flag S. , F are set, the mode is determined and changes are controlled according to the mode (details will be described later) (#1575 to 1620).

In step #1625, the switch S is set to the call mode. , ~sc9 is set to indicate that one of them has been turned ON, and the process returns.

Next, details of each of the above modes will be explained.

The display when setting the exposure compensation mode is shown at DP-5 in FIG. 2B. The display "r+/--2,0" is a numerical display of the current exposure compensation amount, and the display below it has the compensation amount "0" in the center, and 0. It is a number line with scales in units of 5 EV, and the index "kai" indicates the amount of correction at that time.

The hollow indications "-bJ" and "◇" (negative indication) at both ends are switches for performing correction on the negative side and positive side, respectively.

FIG. 30 is a flowchart showing correction control in this exposure correction mode. First, switch S.

3 is turned on. If it is ON, the correction amount is set to ΔEV=ΔEV-0,5, and switch S is turned on. 3 or OFF, and switch S. When 9 is ON, the correction amount is ΔEV=ΔEV+0. 5, and when both switches are OFF, returns without doing anything (31700-1715). This correction amount is set in b3 to b7 of 63H.

Next, the display when setting the AE mode will be described with reference to DP-6 in FIG. 2B.

The negative display parts rP, ASS, and MJ are switches, and the parts shown as indicators indicate the AE mode set at that time.

FIG. 31 is a flowchart of this AE mode setting.

First, switch S. If 2 is ON, P mode, switch S. If 3 is ON, A mode, switch S. 8 or O
If it is N, it is S mode, switch S.

If 9 is ON, set the data for M mode to 03,
Set bo, b, and return. If neither switch is turned on, return without doing anything (#1720 to 1755).

Next, change the film sensitivity setting display to DP-7 in Figure 2B.
This is shown and explained below.

The value rIsO200J is the film sensitivity of the loaded DX film, and below it is a number line showing the sensitivity correction amount ΔSV.
The scale is marked so that correction can be made in 1/3 EV increments. The center scale is the correction amount "0", and the index indicates the correction amount at that time.

The left side is the overexposed side (lower film sensitivity), and the right side is the underexposed side (higher film sensitivity). The left and right negative displays are switches for setting the over side and under side, respectively.

FIG. 32 is a flowchart showing control of this setting.

Switch S. 3 is ON, the film sensitivity correction amount ΔSV is set as follows: ΔSV=Δ5V-1/3 Switch S. If 9 is ON, it returns as Δ5V=4SV+1/3, and if neither is ON, it returns immediately (#1760 to 1775).

This correction amount data is 09. is set to bo-b4.

The display of drive mode settings is shown in DP-8 in Figure 2B. rSJ is single shooting mode, "Yu" is low speed continuous shooting mode (3 frames per second), and "σ" is high speed continuous shooting mode (5 frames per second). ), "O" indicates self mode. Each one is a setting switch. The indicator indicates the current mode.

FIG. 33 is a flowchart showing control of this setting.

First, if the switch S02 is ON, the single shooting mode is activated, and the switch S is activated. If 3 is ON, high-speed continuous shooting mode, switch S
. If 8 is ON, low-speed continuous shooting mode, switch S. If 9 is ON, the program enters the self mode and sets each data to address 07H, 07H, 07H, 07H, 07H, b2, and returns. If none of SUI and SOCH are ON, the program returns immediately (#1780 to 1815).

The display of the AF zone setting will be explained with reference to DP-9 in FIG. 2B.

r [r-]] J indicates each of the wide, middle, and spot AF zones, and only the set 0 and non are displayed. Negative display r [1! ,]] J is A
This is a switch for setting the F zone.

FIG. 34 is a flowchart showing control of this setting.

First, switch S. 6 is turned on, and if it is turned on, the process changes cyclically from spot zone to middle zone to wide zone to spot zone and returns (#1820.1825). This data is at address 07. is set to b3 and b4 of Returns immediately if no operations are being performed.

Next, change the card mode settings to DP-1 in Figure 2C.
0 and will be explained.

``Negative display rONJ rOFF'' is the card function 0.
A switch for setting N10FF, rADJJ
is a switch that is operated for setting an auto bracket card, which takes pictures while varying the exposure. "ON" in the positive display at the bottom left indicates that the current card function is ON, and if the function is OFF, this display is roFFJ.

FIG. 35 is a flowchart showing this control.

First, switch S. If 7 is turned on, the function is turned on and switch S is turned on. If 8 is ON, the function is OFF.
(#1830-1845). This data is set in b6 of address OCH. If neither switch is ON, determine whether or not a bracket card is installed, and if it is not installed (
OBH b520), return (#1850).

If the bracket card is installed (OBH b5=
1), switch S. 9 is ON or not, and if it is ON, the flag AEBF is set, data setting is controlled, and the process returns (#1855 to 1865).

When switch SC9 is OFF, it is determined whether flag AEBF is set. If not set, return; if set, step 11865
Proceed to (#1870).

The display of the above-mentioned auto bracketing data setting is shown in DP-12 of FIG. 2C and will be explained.

The display next to r+/-J is the amount of exposure shift, rEX
The display next to P and J indicates the number of films to be shot.

FIG. 36 is a flowchart of this control.

Switch S. If 2 is ON, set the shift amount to 0.5
Change cyclically as EV-1,0EV-1,5EV-0,5EV (#1930.1935). This monitor is set to bOlbl at address OFH. In addition, the microcomputer uses this data as 45 of the card communication data.
Also set b2 and b3 of 8 and return. Switch S. If 3 is ON, it is cyclically changed from 1 to 3 to 5 to 1 (#1940, 1943). Note that this data is set in b2 and b3 of address OFH. The microcomputer also sets this data to b4 and b5 of 458 of the card communication data and returns (J
1945). If one sheet is set, only proper exposure is achieved. If both switches are OFF, the process returns without doing anything.

Next, change the display mode of the photometry zone setting to DP-
41 and will be explained.

The large positive display at the top center is a display of the current photometry zone, and the six negative displays are setting switches for setting the photometry zone.

FIG. 37 is a flowchart of this control.

First, switch S. 2 is ON, left metering mode (fifth mode), switch S. 3 is ON, spot metering mode (4th mode), switch S. 6 is ON
If so, select downward metering mode (third mode), switch S.

If switch S08 is ON, it is automatic metering mode (AUTO), and if switch S08 is ON, it is right metering mode (first mode). If 9 is ON, the average photometry mode (second mode) is set, data in b5 to b7 of address 07H is set according to the photometry mode, and the process returns (
81870-1925). Returns immediately if no operation is performed.

Next, display the settings for the photo mode on DP-1 in Figure 2C.
3 and will be explained.

The negative display l'-+Jr-J is a switch for setting the year, month, and day up and down, respectively. The "convex" on the negative display is a switch for selecting the year, month, or day. r12/ABJ is a switch for selecting whether to display the month using numbers or alphabets. "89 MAY 25J indicates the set year, month, and day in order.

FIG. 38 is a flowchart showing control of this photography mode. First, it is determined whether the switch SCI is turned on or not, and if it is turned on, the selection switch "convex"
It is determined by b6 and b7 of the address OD whether the year, month, or day is selected. In year mode, it changes cyclically as 00-01→...→98→99→00 and returns (#1950-1960)
). If it is month mode, check whether it is numerical mode or not.
Judging from b4 of , if it is numerical mode, 1 → 2-・
...-11-12→1, if not in numerical mode, JAN
→FEB→・・・→NOV→DEC-JAN and return (#1965 to 1980)
). If not in month mode, as day mode 1 → 2 →...
・Change cyclically from →30→31→1 and return (#1985). The data set as described above is stored in OAH to OCH.

Switch S. When 2 is turned on, switch S above. Since the only difference is that the direction of change is opposite to that of turning on l, the explanation here will be omitted.

Switch S. If 6 is ON, change mode from year → month →
Return by changing cyclically from day to year (#2
030.2035). This data is ODH b6, b7
is stored in memory. If switch S69 is ON, changes are made in the order of numerical value - alphabet (ALF) (#20
40.2045). This data is stored in b4 of OBH. Which switch S. If I, SC2, SC6, and SC9 are OFF, the process returns without doing anything.

Next, the display of the select mode will be described with reference to DP-14 and DP-15 in FIG. 2C.

First, DP-14 indicates whether to count up or count down the film count, so rl, 2. 3. The negative indicators next to the numeric display "..." and the numbers "r24, 23..." are switches for selecting count up and count down, respectively. The display "rl, 2°3, . . ." below indicates the current film count mode. r in the lower right corner
The negative display of NEXTJ is a switch for shifting to a mode for selecting a focus mode by operating a switch provided on the lens.

On the other hand, DP-15 shows the display for selecting the focus mode, J is the switch for selecting the spot AF mode, and AFJ is the switch for selecting the continuous AF mode. switch, rF
, L, and J are switches for selecting focus lock mode. The display rNEXTJ is a switch for shifting to the film count selection mode. rC in the lower left corner
, AFJ indicates the current selection mode.

FIG. 39 is a flowchart showing these controls.

First, check whether you are in film count selection mode or not.
Judging by 7. Switch S in film count mode. If 7 or ON, it is count up mode, switch S. If 8 is ON, it is in countdown mode,
A signal indicating each is set in the data of b7 of OCH and the process returns (82050-2070). Switch S. 9
If is ON, return after setting the OEM b7 data as the mode to select the focus mode,
Returns if there is no operation (#2075.208
0).

If the film count selection mode is not set in step #2050 and the switch SC4 is ON, the spot AF mode and the switch S are set. If 7 is ON, it is continuous AF mode and switch S. If 09.8 is ON, the focus lock mode is set, and the signals indicating each are set to 09.8. b6,
Set to b7 and return (#2085-2110
). None of the switches SC4+SC7+SC6 are ON, and the switch S. If it is 9 or ON,
The data in b7 of OEH is changed to the film count selection mode and the process returns.If there is no operation, the process returns as is (#2115.2120).

Next, when an external flash is attached, display the modes that can be changed using the flash function in Figure 2C.
It is shown and explained in P-16 (DP-16').

rHI GH/LOWj is a switch that changes the maximum amount of light emitted, and the currently visible rHIGHJ or II.

OWJ is the current mode. Regarding "c-c-/<<J,""Oki" is a switch for switching front-curtain synchronized light emission, and "Ri〈" is a switch for switching rear-curtain synchronized light emission, and the one that is currently visible indicates the mode. rMAN/AUTC)J is full flash (・MAN...manual) and dimming (AUTO).
... automatic dimming), and the one you can currently see indicates the mode. "Dan" in the upper right is a switch that changes the dimming range between spot and wide, and the range indicated by that switch, that is, in the case of the display shown on DP-16, the center of the screen is DP-16' In the case of the display shown in , the entire screen is within the dimming range. rON
For loFFJ, "ON" means the strobe is turned on.
, r.

FFJ means power OFF of the strobe, and is a mutual switching switch. The currently visible switch indicates that mode.

FIG. 40 is a flowchart showing this control.

Switch SC1, SC2, SC3, SC7, S. Each function of the strobe is changed according to which of the 9 switches are turned on. That is, if switch SC4 is ON, rHIGH←LOWJ is switched, and switch S is turned on. 2
is ON, "front curtain synchronized light emission - rear curtain synchronized light emission" is set, and when switch So3 is ON, "MAN-AUT
OJ, switch S. If 7 is ON, select "Spot dimming ← Wide dimming J, switch S. If 9 is ON, select rO.
N→0FFJ is switched respectively. Furthermore, information regarding the changed functions is stored in bo to b4 of the OEH. Furthermore, rHIGH-LOW” switching information, r
The ON-OFFj switching information is also memorized in 30H b2 and bo to be sent to the flash side (
42125-2175).

Next, change the mode setting display for APZ mode to D in Figure 2C.
It is shown and explained on page P-17.

Among the negative displays, the negative display of "Fugi" is made possible by the switch "8
'' is a switch for setting the upper body mode (imaging magnification β, = 1/60), and rPJ is a switch for setting the program mode. “OFF” turns this mode on.
This is a switch for FF. Indicates the mode the indicator is currently set to.

FIG. 41 is a flowchart showing this control.

Yes, Switch S. If switch Sc3 is ON, the whole body mode ("moxibustion" mode) is activated, and if switch Sc3 is ON, the program mode is activated. If switch S09 is ON, the mode is OFF, and the data set in b6 and b7 of OB are set (#2180 to 2215).
. Returns immediately if no operation is performed.

By the way, when data is output to the display, the display control circuit DI
SPC is based on input data, DP=1 to DP-1
The display shown in FIG. 6 is displayed on the display unit DISP, but since the above explanation has made it clear how the display is performed, here, we will focus on explaining the parts that are difficult to understand in the display diagram.

In the display of DP-1 and DP-1', the flash dimming range is displayed when flash photography is being performed, and the focal length display is displayed when a lens is attached.
Each determination is made using the data of b7 of 04H, b7 of 05H, and b5 of ODH.

On the DP-2 display, rCA RDJ is displayed only when a card is installed, and on the DP-3 display, rFLASHJ is displayed only when an external flash is installed. , b5 of each OCH,
Determined by b5 of OEH.

Also, rBRAKTJ or rsPO in DP-1
RTJ negative display indicates that the card is installed and the function is ON.
It is displayed when the switch is configured. That is,
[If you turn it on when BRAKTJ is displayed,
Directly, the data setting process necessary for auto bracket shooting as shown in Fig. 36 is performed, and if you turn it ON when rsPORTJ is displayed, the call mode ■ will be displayed (Fig. 2B DP-
4) is performed.

Returning to FIG. 3, when the set routine of step #45 is completed, a display data output subroutine (#50) is performed and the process proceeds to step #2o.

If the call flag (call F) is not set in step #40, the process advances to step #55.

When the flag (timer F) for resetting and starting the timer timing is set, this flag is reset, the timer is reset and started, and the process proceeds to step #70 (#55 to #65). Even if the flag (timer F) is not set in step #55, the process proceeds to step #70, and in #7o it is determined whether or not the timer has elapsed for 5 minutes, and if it has, halt control is performed. It becomes a halt (#70.75). If 5 minutes have not passed,
Execute the data setting subroutine (#76), execute the switch S1 ON subroutine, and step #10.
Return to This data setting subroutine is performed by an up/down switch and a card function change SC6 switch provided on the camera body, and the shutter speed, aperture value, and card mode are changed (#76).

FIG. 42 is a flowchart showing a subroutine for this setting.

The display at this time is, for example, DP-1 shown in Fig. 2B.
Displayed as DP-1', rsp.

The negative display portion labeled RTj or rBRAKTJ is a switch, and is displayed when a card is present and its function mode is turned on. First, in this flow, the switch S. It is determined whether or not 6 is turned on.

If the switch is not turned on, it is determined whether the flag Sc N F indicating that the switch is turned on is set, and if it is not set, step #3
Proceed to 90. Flag S. When NF is set, switch S. 6 has changed from ON to OFF, the process advances to step #387 to perform various settings. continue,
Determine whether the mode is bracket mode or not. If it is bracket mode, execute subroutine AEB, and if not bracket mode, execute call mode ■ and return (#
386-389).

Switch S in step #379. If 6 is turned on, the process advances to step #380. The card is installed in step #380 (OCH b5) and the card function is 0.
If N (b6 of OCH), the process advances to step #382, and it is determined whether the inserted card is a bracket card (b5 of OBH). If it is a bracket card, set data (10H) in 00H, -b7 as bracket mode, and if no bracket card is installed, set data (14H) as call mode.
Set. Next, a flag S indicating that the switch S06 has been turned on. Set NF and return (#3
79-385). On the other hand, if the card is not installed or the card function is OFF, the process returns directly.

If you have proceeded to step #390, step #390
Now, determine whether the current AE mode is P mode or not (#
390). This AE mode determination (the same applies to modes other than the P mode described below) is performed based on bo and b in 03)1. If it is P mode, return as is.

If it is not the P mode, it is determined whether the switch SMI is turned on (mode I) (#391). In mode I, when in M mode, the shutter speed is changed by operating the up/down switch SUP%SDN, and if not in mode I, the aperture value is changed by operating the up/down switch 5UPs sDN. If the mode is not I in step #391, it is determined whether the mode is S mode (#392). In S mode, if the up switch SU is ON, the shutter speed is TV = TV + 0.5, and if the down switch SDN is ON, TV = TV-.
0.5 and return (#400 to 415). If no switch is operated, the process returns immediately.

If it is not the S mode in step #392, that is, the M mode or the A mode, the up switch S I
In response to the operation of JP and down switch SDN, the aperture values are returned as AV=AV+0.5 and AV=AV-0,5, respectively, and if there is no operation, the process returns immediately (1420 to 435).

In step #391, if the mode is ■, it is determined whether the mode is M mode. If it is M mode, step #40
The process advances to 0 to change the shutter speed, and if the mode is not M mode, the process advances to step #392 (#395).

Next, the light control circuit and the built-in flash circuit are shown in FIG. 43 and will be explained.

First, a circuit related to data communication will be explained.

When a high level signal is momentarily output from terminal C3FL,
This signal is output from the OR circuit OR2 to the flash. Next, a data communication clock is output from the terminal SCK and connected to the flash via the OR circuit OR2. When data is output from the camera side in synchronization with this clock, it is output from the terminal 5OUT to the flash via the OR circuit ORI and the input/output switching circuit (I10 switching).

At this time, the input/output switching circuit is switched to the output side. When inputting data, the data is input from the terminal ST2 to the terminal SIN via the input/output switching circuit.

Next, the dimming circuit will be explained. The light receiving element 5PCI connected to the dimming circuit LAC dims the area around the shooting screen,
The light receiving element 5PC2 dims the center of the photographic screen. When the switch SP connected to the light receiving element 5PCI is ON, light control is performed in both ranges (wide light control), and when the switch is OFF, spot light control is performed based only on the center of the photographic screen. This light control circuit LAC is capable of changing the amount of light control in accordance with the film sensitivity based on a signal obtained by converting film sensitivity data into an analog signal. An H level signal is output from the terminal STP in the auto mode, based on whether or not to dim the light (auto mode or not).

When the amount of light received by the light receiving element reaches a predetermined level, an H level stop signal is output from the terminal STP of the dimming circuit LAC, and is transmitted to the flash via the AND circuit ANI, OR circuit ORI, and input/output switching circuit. . The built-in flash is connected from the AND circuit AN1 to the light emission control circuit ECCl.
is sent to terminal STP.

Built-in flash is booster circuit BSI, rectifier diode R
It consists of a DL light emission capacitor MC1 and a light emission control circuit ECCl for stopping flash light emission.

When the front curtain run is completed, the X contact is ONL, and this signal is
The signal is inverted by the inverter INI and output to the AND circuit AN3, and the signal delayed by the delay circuit DLI is output to the AND circuit AN2. AND circuits AN2 and AN3 are supplied with a signal from terminal STT indicating whether rear curtain synchronized light emission is being performed (an H level signal if trailing curtain synchronized light emission is being performed).
is input and if rear curtain synchronized light emission, AND circuit A
From N2, if the first curtain synchronized light is emitted, the AND circuit AN
3 outputs a light emission signal to an AND circuit AN4. A signal indicating whether light emission is enabled/disabled is input/output from the terminal LE to the AND circuit AN4, and when the light emission is disabled, an L level signal is inputted thereto. When it is possible, an H level signal is input, the AND circuit AN4 is opened, and a light emission signal is input to the external flash. This signal is also input to the AND circuit AN5. The AND circuit AN5 receives a signal from the terminal INFL indicating that only the built-in flash is capable of emitting light, and outputs a light emitting signal if it is not capable of emitting light, that is, if an H level signal is output from the terminal INFL.

FIG. 44 is a circuit diagram of an external flash.

In the figure, the flash circuit includes a battery E F L % diode D3 and a backup capacitor BUC.

Microcomputer μC2 that controls flash, booster circuit B
S2, light emitting capacitor MC2, rectifier diode D2,
and a light emission control circuit ECC2.

FIG. 45 is a flowchart showing the operation of this microcomputer μC2.

The operation will be explained below with reference to FIG.

When the signal U is input from the terminal STI, the interrupt shown in FIG. 45 is executed. First, interrupts to this flow are prohibited, data is exchanged with the camera, and 1 byte of data (data at RAM address 30H) is input (#
FL-5, 10). At this time, a transfer clock is input from the terminal ST1, and data is input from the terminal ST2 in synchronization with this. At this time, since a signal at the rLJ level is input from the terminal 5TEN of the microcomputer μC2 to one input of the AND circuit AN6, the signal does not reach the light emission control circuit ECC2. Based on the data input to the terminal ST2, the microcomputer μC2 determines whether or not the exposure control is being performed. If it is not the exposure control, the data is stored in 3 bytes (RAM address 3
5.4-37. content) Output (#FL-15, 20
). Note that the data contents have already been explained, so the explanation will be omitted here. Furthermore, based on the input data, it is determined whether the flash is 0N10FF or not.
If it is N, the terminal BCN is set to H level to start boosting the voltage, and if it is OFF, the terminal BCH is set to L level to stop boosting, and returns as interrupt enabled (#FL-25
~40).

In step #FL-15, when it is determined that exposure control is to be performed, the terminal 5TEN is set to H level, and a light emission stop signal from the camera side is output from the OR circuit OR3 and the AND circuit AN6.
, and wait for the X contact to turn on.
When turned ON, start the timer (#FL-45 to 55)
. Based on the input data, it is determined whether rH/Lj... rHJ can emit the maximum amount of light, rLJ can emit 1/16 of the maximum amount of light, etc., and if it is not "L", step #FL
Proceed to -75. If it is rLJ, wait until T = TA (this is the time when the amount of light emission becomes 1/16), and when T = TA, output the "几" signal to stop the light emission from terminal STP, Proceed to step #FL-75. Step #F
L-75 waits for a certain period of time, sets terminal 5TEN to L level, and then enters a halt state as interrupts are enabled (#FL-
75.80, #FL-40).

FIG. 46 is a circuit block diagram of the lens, and FIGS. 47 and 48 are flowcharts of the microcomputer μC3 in the lens which controls the operation of the lens.

The operation will be explained below with reference to the drawings.

When a signal of L level is input from the camera to terminal C3LE, the interrupt operation shown in FIG. 47 is executed.

First, the terminal S is synchronized with the clock input to the terminal SCK.
Input 1 byte of data from address OAH of RAM from IN (#L-5). Next, based on the input data, it is determined whether the mode is data output mode. In output mode, based on the tarokku input from the camera,
Terminal S. Five bytes of data are output from the UT, and then zoom control (Z control) is performed (#L-10, 20).

This zoom control will be explained with reference to FIG. 48. Based on the data input from the camera (RAM address 2CM), it is determined whether or not the APZ mode is selected, and if it is the APZ mode, the focal length data input from the camera ( The focal length f is controlled based on the RAM address 28H) and the process returns.

If not in APZ mode, tele side zoom switch SZT
Alternatively, depending on the operation of the wide side zoom switch SZW, the tele side zoom and the wide side zoom are controlled respectively, and the process returns (#L-40 to #L-65).

The zoom control described above includes the zoom driving direction and start,
Zoom drive circuit Z sends a stop signal. Based on the input signal, the zoom drive circuit
Drives the motor for driving the zoom lens. Control to a predetermined focal length is performed by inputting a signal from the zoom encoder Z·EN indicating the current focal length.

In step #L-10 of FIG. 47, if it is not the output mode (No in #L-10), 2 bytes of data (RAM addresses 2BH, 2CH) are input from the terminal SIN (#L-25). Based on this input data, it is determined whether the camera's power is ON10FF, and if it is ON, the process proceeds to step #L-20, and if it is OFF, the camera is powered on.
The zoom is stopped as it is an FF, and the microcomputer μC3 stops its operation (#L-35).

In FIG. 46, the encoder DVEN outputs a signal indicating the subject distance D9 where the lens is in focus. This data is output to the camera side. Also,
The zoom control circuit ZcN is connected to a specific power supply line (Vc c
, GND2).

Other than that, conventional power supply lines (Vcc, GND
l).

FIGS. 49A to 49C are flowcharts showing control performed by cards in two types of cards, sports cards and bracket cards.

First, when an L level signal is input from the camera terminal C3CD, the interrupt control shown in FIG. 49A is executed. Terminal S is synchronized with the clock input from camera terminal SCK.
Input 1 byte of data (RAM address 40M) to IN (#CD-5). Based on this input data,
In mode ■ (corresponds to communication on the camera side), 1 byte of data indicating the card type (RAM address 4
1H) Output and return (#CD-10, 15).

If the mode is not ■, it is determined whether it is the mode ■ (corresponding to communication H on the camera side). In mode ■, 3 bytes (RAM addresses 43.-45H) of signals such as photometry data, film sensitivity data, camera switch status, and auto bracketing data are input from the camera, and the card function is activated from the input data. Determine whether it is OFF or not.

If the card function is OFF, the process returns; if it is ON, a subroutine exposure calculation is performed and a halt state is entered (#CD-20 to 35). If it is not mode ■, set shutter speed TVoD1 aperture value AVo as mode ■ (corresponding to communication ■ on the camera side). and camera control data, totaling 3 bytes (RAM addresses 49H to 51H)
Output and return (#CD-40). Note that this control is the same for both sports cards and auto bracket cards.

FIG. 49B shows a sports card exposure calculation subroutine.

First, the exposure value is determined as EV=BVC+SV based on the information input from the camera, and from this exposure value, the shutter speed TVco and aperture value AvoD are determined according to a predetermined program.
is determined and set as output data to the camera (#CD-45, 50).

Then, after setting to display the presence/absence of flash emission, prohibition of release, presence/absence of continuous shooting, etc. in the table of FIG. 50, the process returns (#CD-55). Since this exposure program is compatible with sports scenes, it is a program that prioritizes high shutter speeds.

FIG. 49C shows the exposure calculation subroutine of the auto bracket card.

First, it is determined whether the photographing preparation switch S1 is ON based on information input from the camera, and if it is ON, it is determined whether release prohibition data is set in the card. If it is set, it returns as photography is prohibited (#CD-57, 58). If switch S1 is not ON, reset the release prohibition data and proceed to step #CD.
Proceed to -60 (#CD-59). Step #CD-58
Even when release prohibition data is not set in
Proceed to step #CD-60. In step #CD-60, it is determined whether or not the release switch S2 is turned on. If it is not turned on, the exposure value EV is calculated as Ev=Bvo+Sv, and the variable N is set to zero. Furthermore, set the control data as shown in the table in Figure 50, and set the exposure E determined above.
Determine shutter speed TVcD1 aperture value AVco from V and return as output data (#CD-6
5-80). Here, in this exposure program, the change in shutter speed and aperture value is 1 for each change in exposure value.
The ratio is 1 to 1. Note that the release prohibition data of the control data is not set here.

If the release switch S2 is ON in step #CD-60, set the variable to N=N+1, calculate the shift amount ΔEV from the exposure shift amount input from the camera, and then determine the variable N (#CD-85
, 88, 90). If N=1, the exposure value EV is calculated as EV=EV-4EV in order to overexpose by ΔEV, and it is determined whether the number of shots set for shooting N5ET is 1, and if it is 1, the release is prohibited. Set the data and proceed to step #CD-75 (#CD-95 to 105
). This is because when the flow reaches step #CD-100, the first photograph has always been taken. In other words, when the number of film shots is 1, shooting of the second film is prohibited. If the number of photographic set images NsF,T is not 1, nothing is done and the process proceeds to step #CD-75.

If N = 2, the exposure value E is set so that the exposure amplifier is only ΔEV.
EV = EV + 2ΔEV Step #CD-75J: Advance (#CD-11
0,115), and N=3, the exposure value EV is set as EV=EV-3ΔEV in order to overexpose by 2ΔEv, and it is determined whether the number of shots set for photographing is N5ET or 3. If it is 3, set release prohibition data, and if not, immediately proceed to step #CD-75 (#C
D-120 to 130). If N=4, set the exposure value EV to EV=EV+44EV to make the exposure a under by 2ΔEV, and if N=4, set release prohibition data and proceed to step #CD-75 (#CD-150 )
. Therefore, when shooting with exposure shifts using an auto bracketing card, the following methods are used: proper exposure, ΔEV over, ΔEV under, 2
This is done in the order of ΔEV over and 2ΔEV under.

[Effects of the Invention] As explained above, this invention detects the attachment of an electronic flash device, displays the photographing information on the display section of the camera, and allows the information to be set on the camera. It becomes easier to operate the electronic flash device.

[Brief explanation of the drawing]

1 to 53 are all according to one embodiment of the present invention, in which FIG. 1 is a circuit block diagram of a camera, and FIG. 2A is a switch S for a touch panel. 1 to sc9, FIG. 2B and FIG. 2C are diagrams showing the specific display state of the touch panel, and FIG. 3 is a flowchart diagram showing the interrupt SMINT routine when the main switch is turned on. Figure 4 is a flowchart showing the contents of the subroutine when the touch panel switch is turned on in Figure 3, Figures 5A to 5D are diagrams showing data stored in the RAM in the camera, and Figure 6 is display data output. 7 is a flowchart showing the contents of the FL data communication I subroutine, FIG. 8 is a flowchart showing the contents of the 5LON subroutine, and FIG. 9 is a flowchart showing the contents of the lens data input subroutine. FIG. 10 is a flowchart showing the contents of the card communication I subroutine, FIG. 11 is a flowchart showing the contents of the photometry subroutine,
Fig. 12 is a flowchart showing the contents of the AF control subroutine, Fig. 13 is a flowchart showing the routine for determining the AF mode in Fig. 12, and Fig. 14 is the content of the auto program zoom APZ control subroutine. 15 is a flowchart showing the subroutine for outputting lens data, FIG. 16 is a flowchart showing the contents of the subroutine for reading film sensitivity Sv, and FIG. 17 is a flowchart showing the specific contents of the subroutine for card communication H. 18 is a flowchart showing the specific content of the flash FL mode subroutine, FIG. 19 is a flowchart showing the specific content of the card communication subroutine, and FIG. 20 is a specific flowchart of the exposure calculation subroutine. 21 is a flowchart showing the specific content of the subroutine for calculating the dimming interlock range of the flash mode. FIG. 22 is a flowchart showing the specific content of the exposure control subroutine. 24 is a flowchart showing the specific content of the flash data communication H subroutine, FIG. 24 is a flowchart showing the specific content of the flash FL control data set subroutine, and FIG.
The figure is a flowchart showing the specific content of the winding control subroutine, Figure 26 is a flowchart showing the specific content of the interrupt routine executed when the camera back is closed, and Figure 27 is the call ON FIGS. 28A to 28D are flowcharts showing specific contents of the set routine;
FIG. 29 is a flowchart showing specific details of the halt control subroutine, FIG. 30 is a flowchart showing specific details of exposure compensation mode, FIG. 31 is a flowchart showing details of AE mode setting, and FIG. 32 IS
Flowchart diagram showing control of O mode setting, No. 33
Figure 34 is a flowchart showing control of settings in drive mode, Figure 34 is a flowchart showing control of settings in AF zone, Figure 35 is a flowchart showing control of settings in card, and Figure 36 is a bracket card installed. 37 is a flowchart showing the setting control in the photometry zone mode, FIG. 38 is a flowchart showing the setting control in the imprint mode, and FIG. 39 is the flowchart showing the setting control in the imprint mode. FIG. 40 is a flowchart showing setting control in flash mode, FIG. 41 is a flowchart showing setting control in APZ mode, and FIG. 42 shows specific contents of the data setting subroutine. Flowchart diagram, Figure 43 is a configuration diagram showing the dimming circuit and built-in flash circuit, Figure 44 is a circuit diagram of the external flash, Figure 45
The figure is a flowchart showing the operation of the external flash circuit, Figure 46 is a lens circuit block diagram, and Figure 47 is a block diagram of the lens circuit.
FIG. 6 is a flowchart showing the specific contents of the interrupt routine in the microcomputer, FIG. 48 is a flowchart showing the specifics of the zoom control subroutine, and FIGS. Flowchart diagram showing control of seed cards, 5th
Figure 0 is a diagram showing the control data to be set, Figure 51 is a configuration diagram showing the specific arrangement of photometry areas 1 to 9, and Figure 52 is a configuration diagram showing the specific arrangement of focus detection areas 1 to 5. ,
FIG. 53 is a diagram showing the relationship between the mode signal stored in the RAM of FIG. 1 and the display mode. In the figure, μC is a microcomputer, and S is a microcomputer. 1~S
C9 is a touch panel switch, DP-1 to DP-17
indicates the display state of various photographic information, CD indicates an IC card, and ST indicates an external flash. In each figure, the same reference numerals indicate the same or corresponding parts. Patent Applicant Minolta Camera Co., Ltd. -5 = Representative Patent Attorney Kube Fukami - Tae, 9 (and 2 others) 2nd A port pρ DP-1" DP-2 DP-3 DP-4 82B port DP-5 DP- 6 DP-7 DP-8 DP-'i DP-10 DP DP-12 DP-13 DP-4 Ditch 2 (LP. DP-15 DP-16 DP-16' DP-I7 40 Figure 5B Depth SA diagram Fig. 5C SSD Fig. 6 Fig. 7 Fig. 14 Fig. 15 Fig. 16 Fig. 17 Fig. 18 Fig. 1q Fig. 21 Fig. 220 Soft 24 Fig. 4427 Fig. 25 Fig. 26 Fig. 2&A mouth 2BC Figure 2q Figure 30 Figure 33 Figure 310 Figure 32 Figure 3S Figure 36 Figure 841 Figure 45 Figure 46 Figure 47 Figure 48 Figure 4'?A Figure 849B Figure SO Figure Figure 51 Figure 52 Figure S3

Claims (1)

[Scope of Claims] A camera to which an electronic flash device can be attached, comprising: a display means that is made of a dot matrix over the entire surface and can display photographing information; and a display means on which the display by the display means can be visually confirmed. a touch switch that is provided in such a state that the camera can input the corresponding shooting information by touching a part corresponding to the displayed shooting information; and a detection means that detects that the electronic flash device is attached. A camera comprising: a control means for controlling said display means so as to display photographing information regarding an attached electronic flash device in response to a detection output from said detection means.