JPS6250742A - Camera capable of trimming photography - Google Patents

Abstract

PURPOSE:To reduce the blur of an object by making the shutter speed of a camera capable of trimming photography faster than in normal photography in trimming photography and recording information indicating that the trimming photography is performed on a film. CONSTITUTION:The camera is made capable of mode switching so as to take a picture in normal photographic mode and photograph a narrower trimming range. Then, when the trimming photography is not performed, a wide photographic lens B1 is photographed on a film by a photographic lens 20 and then a print is made. When the trimming photography is performed, a narrower photographic range B2 is photographed. Then when a trimming mode is selected, a trimming signal is outputted, the low-speed limit of the shutter speed is switched to a high-speed side as compared with the normal photographic mode, and the information indicating that the trimming photography is performed is recorded on a film. Thus the shutter speed is increased, so the shake of the camera is eliminated to eliminate the blur of the print.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a camera, and more particularly, to a normal shooting mode for shooting a normal shooting range, and a trimming mode for instructing a narrower trimming range. Regarding cameras that can be switched.

Obedience! Tsukishiogi - Conventionally, the above-mentioned camera has already been proposed in Japanese Patent Application Laid-Open No. 54-26721.

However, when shooting with such a camera in trimming mode and printing the specified trimming range to the same size as the frame shot in normal shooting mode, the enlargement magnification of the printer is The frame will be larger than the frame in normal shooting mode. Therefore, blurring of the subject image due to camera shake, which was not a problem in the normal shooting mode, becomes noticeable.

Therefore, it is an object of the present invention to provide a camera in which there is less possibility that blurring caused by camera shake, which becomes noticeable when photographing in trimming mode, will be printed.

In order to achieve the above object, the present invention provides a camera that can switch between a normal shooting mode for shooting a normal shooting range and a trimming mode for instructing a narrower cropping range. , a trimming signal output means for outputting a trimming signal indicating the selected trimming mode; and a shutter for switching the lower limit of the shutter speed to a higher speed than in the normal shooting mode V in response to the trimming signal. The present invention is characterized by comprising a speed limiting means and a recording means for recording on the film that photography has been performed in the trimming mode in response to the trimming signal.

Operation 1 - Therefore, according to the present invention, when the trimming mode is selected, the low speed limit of the shutter speed is switched to the high speed side, so it is possible to shoot at a shutter speed that is more likely to cause camera shake than in the normal shooting mode. Cropping that is printed at a larger enlargement magnification than the normal shooting mode, as the possibility that the subject will appear on the film due to camera shake is smaller than in the normal shooting mode. Even in this mode, there is little chance that the subject will stand out.

(Margin below) Big 1st eye” Examples of the present invention will be described in detail below.

First, FIG. 1 is a perspective view showing a camera according to an embodiment of the present invention. In Figure 1, (2) is the camera body, (4) is the shirt release button, and (6) is the pull button (Ill li'
(8) is a date selection switch for selecting whether or not to print the date on photographic paper, (8) is a trimming setting button for setting whether or not trimming is necessary and its size, (L CD
, ) is a product display device that displays various information regarding shooting, and the shirt release button (4), date selection switch (6), trimming setting button (8), and liquid crystal display (LCD, ) are shown in Figure 2. As shown in the top view of the camera body (2), it is arranged on the top surface of the camera body (2). Here, the date selection switch (6) is of a sliding type, and the date is printed in the illustrated position, and the date is no longer printed when it is slid in the (X) direction in the figure. The trimming setting button (8) is configured so that the necessity of trimming and the amount of one trimming are changed depending on the number of times of suppression. If the trimming setting button (8) is not pressed at least once, the entire normal 4Q shadow area will be printed without trimming, and if the trimming setting button (8) is pressed once, a slightly narrower shooting area will be printed than in the normal state. If you press it twice, you will be in trimming 2 mode, which has an even narrower print area. If you press it three times, you will be in trimming 3 mode, which is the narrowest print area. If you press it further, you will be in close-up mode, which will be described later. Then, if the trimming setting button (8) is further pressed, the original normal photographing mode is returned to. The essence of this will be explained later.

Furthermore, in FIG. 1, (12) is a 7-7 light emitting section,
(14) is a finder window, (16) is a 7-fing lighting window, and (18a) and (18b) are a pair of distance measurement windows, respectively.These are the camera body (2) as shown in the front view of Fig. is placed in front of the

(20) shows a photographing lens, and (22) shows a photometry window for automatic exposure control.

FIG. 4 is a sectional view showing a finder optical system and a distance measuring optical system of such a camera. In FIG. 4, the finding optical system is an inverse lens consisting of an objective lens (L,) with negative refractive power and an eyepiece lens (F2) with positive refractive power, which are arranged inside the finding window (14). 〃Consists of a Lireo optical system.

A semi-transparent fi (H) is arranged between the objective lens (L,) and the eyepiece r (F2), and a liquid crystal display device (LCD 2) is arranged behind the finder lighting window (16).
The light transmitted through the mirror (M) and reflected by the mirror (M) is guided to the 7T ring. On the other hand, a distance-measuring light emitting diode (24) is arranged behind the distance-measuring window (18a), and is configured to project infrared light onto the subject via a projection lens (L,). .

The reflected light from the subject is received by the distance measuring light receiving element (26) via the light receiving lens (L,) placed behind the distance measuring window (18b), and the distance to the subject is determined from the light receiving state. be measured. Since much of this lateral pressure principle is already known, detailed explanation will be omitted.

The range to be printed when trimming is selected in Uni will be explained using FIG. 5.

FIG. 5 is a front view showing one screen of normal 35mu+ film, and in the normal shooting mode in which trimming is not selected, the entire range of 24 mm and 361 mm horizontally is printed. In trimming 1 mode, the range shown in (A1) is printed, in trimming 2 mode, the range shown in (A2) is printed, and in trimming 3 mode, (
The range indicated by A,) is printed. Here, the ratio of the print area on the film in the trimming 1.2.3 mode to the normal shooting mode is 1:1/1:1/
It is set to 2:1/3. Therefore, if the film taken in each mode is stretched to the same size, and the focal length f of the taking lens is 3511III, the same area as that taken with the lens with the focal length shown in Table 1 below will be printed. will be done.

(Margin below) Table 1 Next, Figure 6 shows the display mode of the liquid crystal display Wi (LCD2) within the viewfinder field of view.
D2) has four types of frames (F,) (F,) (F2) (F3) depending on the trimming range.
One of them is configured to be selectively displayed depending on the setting state of the trimming setting button (8). In other words, in the shooting field of view, a frame (Fo) is displayed in normal shooting mode without trimming,
In trimming 1 mode, the frame (Fl) is displayed,
In trimming 2 mode, frame (F2) is displayed,
Frame (F,) is displayed in trimming 3 mode and close-up mode.

Next, using FIG. 7, the relationship between the range photographed and printed by the photographic lens (20) and the photometry range of the photometry system disposed inside the photometry window (22) will be explained. In FIG. 7, in the normal photographing mode in which trimming is not selected, the range (B,) is photographed and printed on the entire film by the photographing lens (20). In trimming mode 3, which has the smallest print area, (B2
) range is printed. Here, the angle of view of the photographic lens (20) with respect to the minimum print range (B2) is assumed to be α. On the other hand, behind the photometric window (22) is a photometric lens (F5
), a filter (F), and a photometric optical system consisting of a light receiving element (28), and if its angle of view is β, then a
It is set so that ≧β.

With this configuration, the photometric range is located within the area to be printed, and even if trimming is performed, it is possible to accurately obtain photometric information that always corresponds to the area to be printed.

fjSa diagram is the liquid crystal display device (LCD,
) is a diagram showing a display mode. However, although all display elements are displayed in the state shown in FIG. 8, in reality, not all display elements are displayed like this.

In figure l@8, <M, )(M 2 )(M ,
) are display elements that indicate the shooting mode of the camera that is set, and in the case of normal shooting mode in which trimming or close-up is not performed, only the display elements CM, ) are displayed. Then, when any of the trimming 1, 2, and 3 modes is selected by operating the trimming setting button (8), only the display element (M2) is displayed. on the other hand,
When the close-up mode is selected, the display elements (M,
) is displayed.

(D ,) (D 2) (D 3) (D ,) (D S)
are display elements that are displayed to display the trimming range according to the shooting mode. First, in the normal shooting mode, a display element (D,) indicating that the printing range is the widest is displayed. In the case of the trimming mode, either the display element (Dl) or (D 2 ), (D , ), or D 4 is selectively displayed depending on the trimming range. For example, in the case of trimming 1 mode, which has the widest printing range among trimming operations, display elements (Dl) and (D2) are displayed, and in the case of trimming 2 mode, display elements (Dl), (D, ) is displayed, and in the case of trimming 3 mode, display elements (D, ) and (D4) are displayed. In the case of close-up shooting mode, the display elements (D,
) is displayed.

(DA) is a display element that displays date data to be printed, and if printing of date data is not selected, no date data is displayed.

Note that the display element (DA) may display the date even when the date data is not printed. (
FC) is a display element that displays the number of captured frames. Furthermore, (FE) is a display element that displays the state in which the film is loaded.

In this manner, the liquid crystal display (LCD) displays various photographing modes, the date to be printed, the number of film shots, the loading status of the Zofilm, and the like.

For example, in Figure 19, the trimming 2 mode is selected and display elements (M2) (D,) (D,) are displayed, and data corresponding to "July 25, 1985" is printed as date data. The display mode of the liquid crystal display device (LCD) shows that the number of shots of the film is 24, and the film is normally loaded.

Next, Figure t510 shows a view from the rear of the camera body (2) with the back cover open. In FIG. 10, the camera body (2) is provided with a spool chamber (2a) on the right side of the figure that stores the spool (28), and a cartridge chamber (2b) where the film cartridge is loaded on the left side of the figure. ) is provided. Thus, as the film is wound, it is moved from the left to the right in the figure. (2c) is a screen frame corresponding to the film at the photographing position, and a code imprinting unit (30) for imprinting various WL information onto the film as a code is arranged at the right end of the screen frame.

This code imprinting unit (30) is fj
As shown in the enlarged view of Figure SI1, one end of the 17@ optical fibers (30a) is arranged in the vertical direction of the figure so as to face the emulsion surface of the film.

As shown in the enlarged cross-sectional view of the code imprinting unit (30) in FIG. (32a).

The f513 diagram shows a code imprinted like this (Unino) (3
0) An enlarged view showing a cross section of the surrounding area. In Fig. 13, (FI) indicates the film that is loaded and wound up, and this film (FI) is attached to the camera back cover (
The screen frame (2c) is crimped at a predetermined position by a crimping plate (40) to which an appropriate crimping force is applied by a pressure plate spring (38) fixed to the screen frame 34) with a pin (36). The food imprint unit) (30) is the camera body (2
) and a light-shielding tube (42), and a light-shielding plate (44) is provided on the surface facing the optical axis of the photographic lens. Here, each light emitting diode (32a) has 7
It is connected to a light emitting diode drive circuit (LEDR), which will be described later, via a lexical board (PB), and the lighting or extinguishing state of each light emitting diode (32a) is controlled by this light emitting diode drive circuit (LEDR). , the code to be imprinted on the film is set.

Therefore, as shown in FIG. 14, a code corresponding to the screen is printed at the right end of the screen when the film is viewed from the back side. That is, the code corresponding to the screen (F L ,) is (CO,), and the code (F L 2) is
CO, ) is supported, and the screen (FL3) displays the code (
CO3) is supported. In addition, in Fig. 14, (C
R) indicates the range in which the hood can be read; the right side of the figure is the direction of the leading edge of the film, and the left side is the direction of the cartridge.

Here, as mentioned above, the hood for one screen of the film is composed of 17-bit digital signals, and the information represented by each bit will be explained using FIG. 15. First, FIG. 15 is a view of the film photographed from the back side in the same manner as FIG. 14, and the right side of the figure is the leading end of the film. The 17-bit code is then replaced with the 3-bit trimming information code (C
L), 1-bit date printability information code (Cs)
, a 4-bit year information code (Cy), a 4-bit month information code (C[11), and a 5-bit day information code (Cy).
Cd). Here, to explain the trimming information hood (Ct) in detail, the bits of this code (Ct) are sequentially (bl) (b2) (b,
), the relationship between the set shooting state and each bit signal is as shown in Table 2.

In Table 2, "1" indicates that the light emitting diode corresponding to the bit is turned on, and "0" indicates that the light emitting diode corresponding to the bit is turned off.

The date print availability information code (Cs) is "1" when the date is printed, and "0" when the date is not printed. Year information code (Cy), month information code (
Cm) and daily report code (Cd) are used by converting year, month, and day data into digital binary numbers.

Next, two electric circuits of the camera of this embodiment will be explained using the circuit diagram of FIG. 16. In FIG. 16, (S,
) is the first shirt release button (4) shown in Figure 1.
The photometry switch (S2) is closed by pressing the second stage! The release switch is closed by suppressing up to
(S,) is a key switch that opens and closes in conjunction with the trimming setting button (8) shown in Figure 1, and (S,) is a winding switch that is closed in response to shirt release and opened when film winding is completed. , (S,) is a back cover switch that is opened when the camera back cover is closed and closed when it is opened, and (S,) is a back cover switch that is opened when film is loaded and is being wound. (S7) is a count switch that is opened at the beginning of the shirt release operation and is opened when the shutter is fully charged; (S,) is a date selection switch (6) shown in FIG. ) is a date print selection switch that is closed when the date is to be printed and opened when the date is not to be printed.

Switches (Sl) to (S,) are respectively start switches, and are connected to a control microcomputer (hereinafter abbreviated as control microcomputer) (CMC) via Nando Day (NA).
is connected to the interrupt terminal (INT) of
Its input terminals (P I ,) (P I 2) (PI ,
) (P I , ) is also directly connected. Here, an interrupt to the control microcomputer (CMC) is sent to the interrupt terminal (
When the input to INT) rises, the switch (S,) passes through a differential circuit consisting of a capacitor (C2) and a resistor (R3).
NA) is input to ν. This is to set the count value of the film counter to "0" when the back cover of the camera is opened. Furthermore, the switches (S5) to (S7) are connected to the input terminals (P I 5) (P
I 6) (P I a), respectively.

Further, each of the switches (Sl) to (S7) generates a pull-up resistor and is connected to a power supply terminal (E, ).

(E) is a power supply battery for the camera, and its output is input to a control microcomputer (CMC) via a stabilizing circuit consisting of a diode (D2) and a capacitor (C1). Here, circuits that tend to malfunction due to voltage fluctuations are supplied with power from the power supply terminal (El) stabilized by the stabilization circuit, and other circuits are supplied with power directly from the power supply battery (E). Ru.

(FL) is a flash circuit that includes a flash discharge tube for flash photography and its control circuit.
The signal from the output terminal (p o , ) of MC'I activates the booster circuit that applies a high voltage to the main capacitor for flash emission, and the output terminal ? -(PO,
) starts the flash emission. Further, when the charging voltage of the main capacitor reaches a predetermined value, a charging completion signal is input to the control microcomputer (CMC) via the input terminal (PI,).

(MD) is a motor drive circuit that controls the film winding motor (M), and the motor (M> is driven by a signal from the output terminal (PO5) of the control microcomputer (CM C) to wind the film. , output terminal (p
A signal from o, ) brakes its drive.

(CAS) is a film sensitivity reading switch that reads information about film sensitivity stored in advance in the film cartridge loaded in the camera and sets the opening/closing state according to that information.
) is converted into an analog signal by a D/A converter (D/A). This analog film sensitivity signal is then input to a photometric circuit consisting of a seven-dimensional photodiode (P D ), an operational amplifier (OP), and a logarithmic compression diode (Dl), and added to the photometric signal. The output of this photometric circuit is therefore a photometric signal added with the film sensitivity signal, and this signal is passed through a buffer (B) to a transistor (TR,
) is input to the base of The signal is then logarithmically expanded by a logarithm expansion circuit consisting of a transistor (TR,) and a capacitor (C,).

Here, the charging voltage of the capacitor (C,) is compared with a predetermined voltage E2 by a humpator (CN), and when the charging voltage of the capacitor (C,) becomes lower than the predetermined voltage E2, the transistor (TR5) becomes non-conductive. As a result, the shatter magnet (SMg) is demagnetized and the shutter is closed. The transistors (T R2) (T R, ) are each controlled by the output terminal (P O<) of the control microcomputer (CMC), and are used to control the timing of excitation and logarithmic expansion of the Shatta Magnen (SMg). It is something. Furthermore, the transistor (TR4) is controlled by a control microcomputer (CM C
) is controlled by the output terminal (PO, ) of the capacitor (C1) to quickly charge the capacitor (C1) and
This is for changing the opening limit value of πl'TtI Kesui・ft Association: Mizusurot et al. [7th section n] and changing the low speed limit value of the shutter speed.

In addition, the output of the photometry circuit, which is a photometry signal to which the film sensitivity signal has been added, is input to an A/D converter (A/D) and converted to a digital signal, and then sent to the input terminal (PIAD).
The signal is input to the control microcomputer (CMC) via the . Furthermore, the digital signal corresponding to the film sensitivity from the switch (CAS) is sent directly to the control microcomputer (CMC).
control microcomputer (CMC) from the input terminal (PIDX) of
In addition, the display microcomputer (DM
C) is also input.

(DMC) is a liquid crystal display (LCD) on the top of the camera.
) and a liquid crystal display (LCD) within the viewfinder field of view.
2) is a display microcomputer (hereinafter abbreviated as display microcomputer) that controls the display and also controls the code imprinted on the film. This display microcomputer (DMC) is supplied with power via a power supply terminal (El), and a date print selection switch (S a) is connected to its input terminal (pi+). Then, the output terminal (P O, ) (P 0.2) of the control microcomputer (CM C)
Interrupt pin (int, ) (1nt
2) is configured to cause an interrupt. Here, an interrupt to the interrupt terminal (intI) occurs when changing the display on the liquid crystal display device (LCD, ) (LCD2), and on the other hand, the interrupt to the interrupt terminal (int2)
) interrupt is placed when the code is imprinted onto the film.

Further, a signal related to the photographing mode is input from the control microcomputer (CMC) to the display microcomputer (DMC') via an output terminal (POD) and an input terminal (piD). In addition, as mentioned above, the input terminal (piDX)
A signal related to film sensitivity is input to .

Furthermore, it has a built-in clock 81 for determining the date imprinted on the film.

The display microcomputer (DMC) controls the liquid crystal display device (LCD) on the top of the camera and the liquid crystal display device (LCD 2) for infinder display, respectively, via the liquid crystal drive circuit (LCDR). There is.

Therefore, from the display microcomputer (DMC) to the liquid crystal drive circuit (LCDR), the shooting mode signal, date signal,
A signal indicating the presence or absence of film, a signal regarding film winding, a signal indicating whether to print the date, etc. are transmitted, and a liquid crystal drive circuit (LCDR) latches these display data. Further, the display microcomputer (DMC) sets the lighting/extinguishing state of a large number of light emitting diodes (32a) for imprinting the code via a light emitting diode drive circuit (LEDR). Here, the light emitting time of each light emitting diode (32a) is changed according to the film sensitivity signal input to the input terminal (piDX).

(AF) is an automatic focus adjustment circuit that automatically measures the distance to the subject and adjusts the focus of the photographic lens according to the result, and is supplied with power from the power terminal (El). Then, this autofocus i4 section circuit (AF) starts autofocus adjustment operation by a signal from the output terminal (po,) of the control microcomputer (CMC), and the detected subject distance is determined by a 4-bit digital signal. As input terminal (PTA
F) is input to the control microcomputer (CMC). The output terminal (P O2) of the control microphone (CMC) is set to "H" when the camera is set to close-up mode.
”, all bits of the distance signal related to the subject distance are
'' to force the distance signal to be a signal indicating the closest position. Therefore, at this time, the photographing lens is set to the closest position. (LMg) is a magnet for the lens stop, as will be described later. Next, when the distance signal and the signal related to the amount of lens extension match, the lens is demagnetized and the extension of the photographic lens is stopped.

(RMg) is a release magnet for starting lens extension, and is an output terminal (P) of the control microcomputer (CMC).
It is controlled by signals of O, .

Next, a more detailed configuration of this automatic focus adjustment circuit (AF) is shown in FIG. 17. In FIG. 17, (D D ) is a distance detection circuit that is activated by a signal from the output terminal (po, ) of the control microcomputer (CM C) and measures the distance to the subject. The optical system is shown in FIG.

The object distance detected by the distance detection circuit (DD) is output as a 4-bit digital signal, and each bit signal is sent to a comparator (CO) via an off circuit.
N ) and is also input to the control microcomputer (CMC) from the input terminal (P AF). and,
The other input terminal of the off-circuit is connected to a control microcomputer (C
The output terminal (PO2) of MC) is connected, so when the close-up mode is selected, the distance signal input to the humparator (CON>) is
Regardless of the output signal of the distance detection circuit (DD), all bits become signals indicating the nearest position of "T-1".

On the other hand, (EC) is an encoder that outputs pulses according to the amount of extension of the photographic lens, and the output pulses of the encoder (EC) are sent to the output terminal of the control microcomputer (CM C) (
A counter (CU
) I is counted accordingly. Then, this count value and the distance signal are compared by the comparator (CON), and when both signals match each other, the comparator (C
ON ) outputs the lens stop magnet) (L
M8) is demagnetized and movement of the photographing lens is stopped at a position corresponding to the distance signal.

Here, in the camera capable of trimming according to the present invention, when the area to be printed on the film surface is reduced, for example in the trimming 3 mode, the area to be printed on the film surface is reduced to the same size as in the normal shooting mode without trimming. When enlarging, the enlargement magnification increases. Therefore, blur and 7-7, which were not noticeable in the normal shooting mode, become noticeable. Therefore, in the camera of this embodiment, the minimum aperture value (that is, the limit value on the open side of the aperture) and the limit value on the slow side of the shutter speed are changed depending on the print range, and the depth of field is increased when performing cropping. At the same time, the shutter speed is increased to prevent camera shake. Note that in this embodiment, a lens shutter that also serves as an aperture is used, so if the minimum aperture value is increased, the shutter speed will be increased accordingly, but the present invention is not limited to this, and the trimming It may be configured such that only the minimum aperture value or only the limit shutter speed is changed depending on the situation.

Table f:tS3 shows the photographing mode, minimum aperture value, and low-speed limit shutter speed in this embodiment.

Table 3 However, here, A v@ax is the minimum aperture value, Tvmi
n indicates the limit shutter speed on the low speed side. This is shown in FIG. In FIG. 18, the vertical axis is the aperture value, and the horizontal axis is the time since the shutter starts opening. In normal shooting mode or trimming 1 mode, the aperture (F value) is 2.8, as shown in (A). The aperture can be opened or the shutter speed can be slowed down to a combination of shutter speeds of 1/30.

In the trimming 3 mode, as shown in (B), it is only possible to reduce the re-shutter speed by 11 digits to a combination of an aperture (F number) of 5.6 and a shutter speed of 1760. Furthermore, in close-up mode, the aperture (F number) is 16 and the shutter speed is 1/1000.
Only combinations of can be set. If proper exposure cannot be obtained with the combination of aperture and shutter speed limited as described above, a flash is automatically emitted. As shown in the lower time chart of FIG.
If underexposure occurs, the output of the control microcomputer (CMC) is set at the time T when the shutter is opened, which also uses the aperture (F number) up to 8, which is calculated based on the distance signal from the automatic focus adjustment circuit (AP). A signal is emitted from the terminal (pos) to start the flash emission, and at the time T2 when the shutter is opened to an aperture (F value) of 5.6, the output terminal (pos) is emitted.
A signal is emitted from the lens shutter po, ) to initiate the closing operation of the lens shutter.

Here, in this embodiment, the exposure value Ev for switching to 7-radius light emission is configured to be changed depending on the shooting mode. Table 4 shows the relationship between this shooting mode and the exposure value (this is referred to as exposure value Eve) at which the 7-light flash is switched.

Table 4 Shooting mode Switchable exposure values Normal shooting mode Ev8 (no trimming) Trimming 1 mode Ev8 Trimming 2 mode Evl O trimming 3 mode
Evl 2 close up mode Evl
8 Here, the exposure value Ev (or Eve) is determined by subject brightness by By and film sensitivity by S in the apex calculation.
v, aperture value is Av, and shutter speed value is Tv, it is defined as Ev (or Eve)=Bv+5v=Av+Tv.

FIG. 19 shows the relationship between the aperture value and the shutter speed value when switching to flash light emission.

In Fig. 19, the vertical axis shows the fringe value and the horizontal axis shows the shutter speed value. In the normal shooting mode without trimming and the trimming 1 mode, when the exposure value Ev is 8 or more as shown in (Da), Although the flash is not emitted, in the trimming 2 mode, the flash is not emitted only when the exposure value Ev is 10 or more as in (Ea). Furthermore, in the case of trimming 3 mode, the flash is not emitted only when the exposure value Ev is 12 or more as shown in (Fa), and in the case of close-up mode, the flash is not emitted only when the exposure value Ev is 18 or more as shown in (Fa). The 7 rays will only emit light when . This is because when the magnification during enlargement is large, the aperture is made as small as possible to deepen the depth of field.

Next, we will discuss the control microcomputer (CM) that controls the camera of this embodiment.
The operation of C) will be explained based on FIG. 20.

FIG. 20 is a flowchart showing the operation of the camera control microcomputer (CMC") of the embodiment not shown in FIG. 16. In FIG. , Next, in step #0, all input/output ports and memory of the control microcomputer (CMC) are initialized.Here, all output terminals except the output terminal (r'o, .) of the control microcomputer (CMC) is initially set to output "L", and the photographing mode is initially set to a normal photographing mode in which trimming and close-up are not performed. Next, proceeding to step #1, each port and each of the seven lags of the control microcomputer (CMC) are initialized. Then, in step #2, the signal at the output terminal (p o t) of the control microcomputer (CMC) is raised, and the booster circuit of the flash circuit (FL) is started to operate. Next, in step #3, external interrupts to the interrupt terminal (INT) of the control microcomputer (CMC) are permitted, and in step #4, the normal stop state is entered.

Then, the control microcomputer (CM
External gL! to the interrupt terminal (INT) of C). ? When the +19 interrupt occurs, step #5 disables external interrupts for that interrupt, and the process proceeds to step #6.

In step #6 (steps will be omitted below), the open/closed state of the winding switch (S,) connected to the input terminal (PI4) of the control microcomputer (CMC) is detected, and the switch (S,) is opened. If the winding of the film has been completed (OF F ), proceed to #7 and input the DX code information regarding the film sensitivity of the switch (CAS) from the input terminal (PIDX). and,
Input terminal (PI3) connected to the key switch (S,) linked to the trimming setting button (8) in #8
From the state of , the shooting mode (transmission mode) will be described later.

Next, in #9, the open/closed state of the back cover switch (S,) is detected from the input terminal (Pis), and if g&lid is set and the back cover switch (S5) is closed. (If ON), proceed to #10 and set the count value of the film counter that counts the number of film shots to O''.#
At 9'g & the lid is r! It is set and the back cover switch (
S5) is open (OF), #10
Proceed to #11 without passing through. In #11, after an interrupt is sent from the control microcomputer (CMC) to the display microcomputer (DMC) from the output terminal (po,,) for rewriting the display, the information necessary for display is transmitted to the liquid crystal display device. (LCD, ) (LCD2) is displayed.

Then, at #12, the photometry switch (Sl) is connected from the input terminal (PI, ) to the shirt release button (4).
If the open/closed state of the photometering switch (S, ) is detected, it returns to #1 (OFF) and enters the normal stop state of #4. If the photometry switch (sl) is closed (
ON), the signal at the output terminal (PO, ) is lowered at #13, and the voltage boosting of the NOSH circuit (FL) is stopped. Then, in #14, the automatic focus adjustment circuit (AF) is activated by the start signal from the output terminal (po,) of the control microcomputer (CMC), and in #15, the automatic focus adjustment circuit (AF) is activated by the start signal from the output terminal (po,) of the control microcomputer (CMC).
The open/closed state of the release switch (S2) linked to the shirt release button (4) is detected from P I z). Here, if the release switch (S2) is open (OFF), the process returns to #12 and the operations from #12 to #15 are repeated until the shirt release button (4) is pressed to the second step and the release switch is pressed. Wait until (S2) is closed. If the closing of the release switch (S2) is detected in #15, the process proceeds to the shirt release operation from #16, which will be described later.

On the other hand, if it is detected at #6 that the winding switch (S, ) is closed (ON), the film winding is not yet completed, so the flow advances to #38 and the flash circuit (FL) is turned on. ), and #39
Start the winding routine. At #39, the motor drive circuit (MD) is driven by the signal from the output terminal (POs) of the control microcomputer (CMC) to start the film winding motor (M) and start winding the film. And at #40, the winding switch (S,)
The film winding is completed by detecting the opening/closing state of the film winding switch (S).
4) Drive the motor (M) until it is released (OFF). When the opening (OFF) of the winding switch (S4) is detected at #40, the motor (M) is turned off at #41.
Stop the rotation of #4 to stop the film winding.
Proceed to 2.

#42 is the input terminal (P) of the control microcomputer (CMC).
The open/closed state of the film detection switch (S6) is detected from Ig), and if no film is loaded and the film detection switch (S6) is closed (ON), #45
At step #1, the information necessary for display is transmitted from the control microcomputer (CMC) to the display microcomputer (DMC), and at step #4, the normal stop state is reached. When it is detected in #42 that the film is being wound and the film detection switch (S6) is open (OF Ru. Then, with #43, the back cover is opened and the back cover switch (S,)
is closed (ON), the process proceeds to #45, where the information necessary for display is transferred from the control microcomputer (CMC) to the display microcomputer (DMC), returns to #1, and returns to #4, where it returns to normal. It will be in a stopped state. Furthermore, in #43, the back cover is empty and the back cover switch (S,) is open (OF
), proceed to #44, increase the count value of the film counter by 1, and proceed to #45, transmit the information necessary for display from the control microcomputer (CMC) to the display microcomputer (DMC). The process returns to #1 and enters the normal stop state at #4. That is, this configuration prevents the film counter from incrementing when the back cover of the camera is opened or when the film is not loaded at Vc.

Next, the release routine starting from #16 will be explained. At #16, first, a photometric signal with film sensitivity taken into account is input from the A/D converter (A/D) to the control microcomputer (CMC) via the input terminal (PIAD).

Therefore, this photometric signal is taken as photometric data Eve. In #17, in the camera of this embodiment, as shown in FIG. 19 (not shown), the exposure value Eve at which the flash is switched is different depending on the shooting mode, so the exposure value Evc is changed depending on the set shooting mode. is read from the ROM. Then, in #18, the photometry data Evn is compared with the exposure value Eve for switching to 7-ray shooting, and Ev@>Ev
If it is c, proceed to #25, which will be described later. On the other hand, Evm>E
If it is not ve, then the metering data is lower than the exposure value Eve at which the 7-lash shooting mode is switched, so #1
9 is the input terminal (PI7) of the control microcomputer (CMC).
) to check whether the main capacitor for flash emission in the flash circuit (FL) has been fully charged? Separate. If this charging is completed, the process proceeds to #20 and sets a flash photography flag instructing flash photography. If this charging is not yet complete, #
Return to step 1 and wait for the charging to complete at #4.

In #21, it is determined whether or not the shooting mode is set to close-up mode, and if it is not close-up mode, in #23, the input terminal (PIAF) is sent from the automatic focus adjustment circuit (AF) to the control microcomputer (CMC). A signal related to the subject distance is inputted via. On the other hand, if it is determined in #21 that the close-up mode is set, the process proceeds to #22 and sends the signal "■4" from the output terminal (PO2) of the control microcomputer (CMC) to the automatic focus adjustment circuit. (AF) to forcibly convert the object distance signal into a signal corresponding to the closest distance. Then, in #23, the control microcomputer (CM C
) is inputted with a signal related to the object distance via an input terminal (PIAF).

In #24, the control microcomputer (CMC) connects the terminal (PIA
The value corresponding to the subject distance signal input from F) is stored in the ROM.
, and set it in the light emission timing timer provided inside the control microcomputer (CMC). this is,
When using flash photography, set 7.
! This is because the aperture value is determined according to the subject distance depending on the structure, and the 7-lash light emission timing is determined according to the aperture value as shown in FIG. Next, in #25, the control microcomputer (CMC) sets the value according to the shooting mode to R.
Read from OM and set to exposure limit timer. This is because in this embodiment, the minimum aperture value and minimum shutter speed are limited depending on the shooting mode.

#26 is the control microcomputer (CMC) output terminal (PO
An imprint signal is outputted from z), and the information of each code is imprinted on the outside of the screen of the film depending on the on/off state of the light emitting diode (32a) corresponding to each code.

Then, at #27, the shutter magnet (S Mg) is excited by the rising edge of the signal from the output terminal (P O, ) of the control microcomputer (CMC), and the shutter magnet (S Mg) is excited by the signal from the output terminal (P O, ) of the control microcomputer (CM C). The release magnet (RMg) is started to operate, and the photographing lens is extended after a certain period of time. Then, in #28, the open/closed state of the count switch (S) is detected from the input terminal (r'Ia) of the control microcomputer (CMC), and the process waits for the count switch (S) to be closed. Then, at the beginning of the shirt release operation, press the count switch (S,)
When it is closed, the process proceeds to #29 and the integration of the exposure amount is started. Here, the photometric system of this embodiment has a sub-diaphragm whose aperture diameter changes depending on the amount of light transmitted through the lens shutter, and charging of the capacitor (C1) is started when the integration of the exposure amount starts.

At #30, it is determined whether or not the flash photography flag that instructs flash photography is set, and if the 7 lassie photography flag is set, the process proceeds to #31 and starts the above-mentioned light emission timing timer. , enable timer interrupts and proceed to step 32. If the 7-lash shooting flag is not set in #30, proceed directly to #32. Then, in #32, an exposure limiting timer, which is set in advance for one hour according to the appropriate exposure amount, is started, and in #33, it is continuously determined whether or not this timer exceeds 70-. Here, in this embodiment, since a lens shutter that serves both as an aperture and a shutter is used, the aperture value and shutter speed value are set at the same time by one exposure limit timer. The configuration may be such that they are each controlled separately so that the combinations thereof can be changed in various ways.

When an overflow of the exposure limit timer is detected in #33, the process proceeds to #34 and the control microcomputer (C
When the signal at the output terminal (PO,) of the MC) rises, the lannostar (TR,) becomes conductive, and the shutter magnet (SMg) is forcibly demagnetized, opening the shutter which also serves as an aperture. is closed to end the exposure, wait a predetermined time for the shutter to finish closing in #35, and then
39 Car winding routine - Go back one step.

Here, the timer interrupt routine in #31 is shown in FIG. 21. First, when a timer interrupt occurs, the timer interrupt is disabled in #36, and in #37, the output terminal (pos. ) rises, a 7-lash light emission signal is generated, the flash is emitted, and the process returns to the original step.

Next, the operation of step #8 in FIG. 20 is shown in more detail in FIG. 22. In FIG. 22, first, #8-
1, the open/closed state of the trimming key switch (S,) is detected, and if the key switch (S,) is closed, (O
N), proceed to #8-2, change the trimming mode register by one stage, and proceed to #8-3. If the trimming key switch (S, ) is open in #8-1, the process proceeds to #8-3 without going through #8-2. At #8-3, it is determined from the sensitivity of the loaded film inputted from the switch (CAS) to the input terminal (PIDX) whether or not the film sensitivity is 15O100O or higher.

And if the sensitivity of the loaded film is ■5oi
If it is equal to or more than ooo, the process proceeds to #8-4, where it is determined whether or not the trimming 2 mode or less is selected, and if it is the trimming 2 mode or less, the process is changed to the normal shooting mode without trimming in #8-5.

On the other hand, the sensitivity of the film loaded in $8-3 is rs
If it is determined that it is less than oiooo, the process proceeds to #8-6, where it is determined whether the sensitivity of the film is 15O400 or more. And if it is 15O400 or more, #8
-7, it is determined whether or not the trimming mode is 3 or less, and if it is the trimming 3 mode or less, the process returns to the normal shooting mode without trimming at #8-8. If the film sensitivity is not 15O400 or higher in #8-6, and #8
If the setting is -7 and the trimming mode is not lower than 3, the shooting mode is not particularly changed.

Therefore, according to this embodiment, as shown in the fjS23 diagram, if the sensitivity of the loaded film is less than 15O400, the mode changes from normal shooting mode to trimming 1 mode each time the trimming setting button (8) is pressed. , from trimming 1 mode to trimming 2 mode, from trimming 2 mode to trimming 3 mode, from trimming 3 mode to close-up mode, and from close-up mode to normal shooting mode, whereas l5O400
If the above value is less than 15O100O, pressing the trimming setting button (8) from the trimming 2 mode returns to the normal shooting mode and does not set the trimming 3 mode or the close-up mode.

Furthermore, if a high-sensitivity film of 15O100O or higher is used, pressing the trimming setting button (8) from trimming 1 mode returns to normal shooting mode, and trimming 2.3 mode and close-up mode are not set. This is because the higher the sensitivity of the film, the coarser the grain, so the higher the sensitivity of the film, the less desirable it is for cropping shadows and close-up photography, which require a large enlargement magnification.
In this embodiment, the trimming limit is set differently depending on the film sensitivity.

Next, the operation of the display microcomputer (DMC) of this embodiment will be explained using charts 70 from FIG. 24 to FIG. 26. First, in step #46, all input/output ports and memory of the display microcomputer (DMC) are initialized. For example, the clock mechanism built into the display microcomputer (DMC) is initially set to "January 1, 1985," the shooting mode is set to normal shooting mode, and the count value of the film counter is set to "0." . Next, in step #47, the stored contents of data necessary for display and imprinting on film are decoded. Then, in #48, this data is transmitted to the liquid crystal drive circuit (LCDR), and ? ll
Necessary information is displayed by the blue display device (LCD1) (LCD2). Then, at #.t9, all interrupts are enabled, and at #5o, the normal stop state is entered.

FIG. 125 is a flowchart showing a timer interrupt to the display microcomputer (DMC), and this timer interrupt is configured to interrupt every second. first,
When the timer interrupt occurs, calendar calculation is performed based on the clock mechanism built in the display microcomputer (DMC), the calculated data is decoded in #52, and the liquid crystal drive circuit (DMC) is decoded in #53. LCDR), the display is changed, and the process returns to the original step in #54.

Further, FIG. fj426 is a flowchart showing an interrupt for rewriting the display and an interrupt for imprinting a code on the film. First, display microcontroller (DMC)
) When the input signal to the interrupt terminal (int+) rises and an interrupt is generated, the f525 interrupt (not shown) is disabled in step #55.

Here, if a timer interrupt occurs after #55, it is stored in memory, and the interrupt is configured to be executed immediately after the timer interrupt is enabled. Then, in #56, display data such as the count value of the film counter and the shooting mode are input to the input terminal (pi).
D), the data and date data are decoded in #57, and the decoded data is outputted to the liquid crystal drive circuit (LCDR) in #58 to display the liquid crystal display device (
The display on the LCD, ) (LCD2) is changed, a timer interrupt is enabled in #59, and the process returns to the original step.

On the other hand, the interrupt terminal (in
When the input signal to L2) rises and an interrupt occurs, the timer interrupt shown in FIG. 25 is prohibited in #61,
The open/closed state of the date print selection switch (S8) connected to the input terminal (PIT) at the input terminal (PIT) is detected at the well 62. If this date print selection switch (S,) is open and date printing is not selected, #
The process proceeds to #63, decodes the data corresponding to the code that prohibits printing of the date, and proceeds to #65. On the other hand, #6
If the date print selection switch (S,) is closed in step 2 and date printing is selected, the data corresponding to the date to be printed is decoded in step #64, and the data corresponding to the date to be printed is decoded in step #6.
Proceed to 5.

In #65, the sensitivity of the loaded film is read from the input terminal (piDX) connected to the switch (CAS), and in #66, the exposure time of the hood (i.e., the light emitting diode) is determined according to the read film sensitivity. (32a)) is determined, and the imprinting of the code is started using Hiiragi 67. Then, when the imprinting time determined in #68 is counted, the imprinting is finished in #69, and a progress timer interrupt is permitted in #59.

Imprint the film taken by the camera of this example on the dog! ii. The printing on paper is performed automatically. The configuration of the automatic printer included in the system of this embodiment is shown in FIG. 27. In FIG. 27, (LA) is a printing lamp, (CF ) is a color filler for color balance adjustment that corresponds to the three primary colors of red, green, and blue, (EL)
is a lens, and the light emitted from the lamp (LA) is
The film (F) at the printing position is irradiated through a color filter (CF) and a lens (EL). and,
The light transmitted through this film (F) is projected onto photographic paper (r'p) via a printing zoom lens (PL) and printed.

The configuration of this automatic printer will be explained below along with its operation.

First, (50) is a lamp control circuit that controls the lighting/extinguishing state of the lamp (LA). It is also used for reading imprinted hoods, color balance, and metering for determining exposure.

(52) is a film transport device that sends out the film photographed by the above-mentioned camera toward the carrier of the printer, and sends out the film (F) to the right in the figure; The density of the film is C
CD line sensor or MO8 type line sensor (54)
The screen edge detection device r! is monitored by the MO3 type line sensor (54) and inputs the output of this MO3 type line sensor (54). 1(
56) that the density of the film being monitored has changed.

When detected, the feeding of the film by the film transport device r11 (52) is stopped. That is, as shown in the time chart of FIG. 28, the screen edge detection device (56)
Signal (a) input to the film transport device (52) from
By falling, film advance is stopped and one frame of film is just positioned to be printed. Furthermore, the seven frames of the film that have been printed are sequentially wound up by a film winding device (not shown).

Then, when the film feed is stopped, the code reading device (58) is activated by the signal (b) issued from the film transport device (52), and the film (F
) is read by a line sensor (60). That is, the code reading device (58) reads each information of the photographing mode of the frame to be printed, whether or not to print the date, and the date to be printed. 1. Information on the shooting mode read by the code reading device (58) is transmitted as a signal (e) to the printing zoom lens control device (62) which sets the printing magnification of the printing zoom lens (PL) and the photometry It is transmitted to a photometric zoom lens control device (64) that sets the magnification of the zoom lens (ML). And both zoom lenses (M
The magnification of L) (PL') is set according to the shooting mode information, and if cropping is specified at the time of shooting, the photometry range on the frame and the enlargement magnification on the photographic paper are set according to the cropping size. can be determined. With this configuration, even if a mode that specifies cropping is set at the time of shooting, it is possible to accurately measure only the area to be printed, and it is possible to enlarge the image to the specified size regardless of the cropping size. can be printed.

When the magnification setting of the photometric zoom lens (ML) by the photometric zoom lens control device (64) is completed, a signal (d) indicating the completion is sent to the exposure calculation circuit (6G).
Exposure calculation is performed according to the following. This exposure calculation calculates the light from the frame at the print position using the photometric zoom lens r (
The color balance and exposure amount according to the frame are calculated based on the output of the photometry circuit (68) which receives light through the ML. The color balance signal calculated here is sent to the filter control device (7o) as a signal (e).
) and used to adjust the color balance, while exposure amount information is transmitted as a signal (f) to the lamp control circuit (5).
0) and is used to determine the amount of light emitted from the lamp (LA). Further, a signal (g) indicating the end of photometry is also transmitted from the exposure calculation circuit (66) to the lamp control circuit (50), and the lamp (LA) is temporarily turned off.

Next, filter control '8! (70) is the photometry circuit (68)
Color filter (CF) according to color balance information from
Do a set of filter control device when this set is completed? A signal indicating completion of filter set from i(70) (
11) is emitted.

This signal (h) is transmitted to a lamp control circuit (50) and a shutter control device 22 that controls opening and closing of a shutter (ps) placed in front of the photographic paper (pp) at the printing position.
(72) and a date print control device (74) which controls whether or not to print the date on the screen of the photographic paper to be printed. Here, information regarding the date printed on the photographic paper can be obtained using the code reader r! ! (
58) via a decoder (76) and inputted to the date print control device (74), and the date print control device f? ! (74) sets the year, month, and day of the date board (78) indicating the date printed in response to this (il report).

As soon as the signal (11) is input, the shutter control device (72) starts operating the shutter (ps), and the lamp control device ff1 (50) starts operating the shutter (Ps) after receiving this signal (11). After a certain period of time until the lamp (S) is fully opened, the lamp (LA) is turned on and printing is performed. On the other hand, if date printing is selected by the code imprinted on the film, the date printing control device (74) controls the fixed time period from when the signal (II) is input until the shutter (ps > is fully opened). After setting the date, turn on the lamp (LD) and print the date.

Here, (DL) is a date printing lens, and the date set on the date plate (78) is projected and printed on the photographic paper screen by this 84-inch printing lens (DL). . If printing of the date is not selected by the code imprinted on the film, the lamp (LD) will not be lit and the date will not be printed.

Here, the lighting time of the lamp (LD) for date printing is controlled by the date print control device (74) to be a constant time, and the lighting time for the date printing is controlled to be shorter than the burning time by the lamp (LA). The amount of light emitted from the lamp (LD) is set. On the other hand, the lamp for film printing (LA) is bqr&ed so that the lighting time and light intensity are controlled by the lamp control circuit (50) according to information on the exposure amount.

Then, when printing by the lamp (LA) is finished,
The lamp control circuit (50) outputs an exposure completion signal (j) after turning off the lamp (LA). In response to this exposure completion signal (j), the film transport device (52) starts feeding out the film, and the shutter control device (72)
causes the shutter (ps) to close.

Furthermore, in response to this exposure completion signal (j), the photographic paper transport device (80) sends out the photographic paper (pp) to the right in the figure.
Prepare for the next print. Also, this exposure completion signal (j)
The screen edge detection device (56) and the hood reader (
58), the exposure calculation circuit (66), and the filter control device (70) are each reset to prepare for the next print. Then, the printed photographic paper is sequentially stored in a photographic paper storage device (not shown), and the printing process is performed.

Note that in the camera of this embodiment, the printing date is recorded on the film in the form of a code, so it is difficult to recognize the printing date even if you look at the film as it is. When using reversal film that is rarely printed, the date is of little use even if the date is imprinted on the film as a code.

Therefore, in case a reversal film is used like this, a date imprinting device is built into the camera that imprints the date as a numerical value on the screen of the film as in the past. The date imprinting device should be configured so that the date is imprinted on the film as a numerical value.Here, in order to determine whether normal negative film or universal film is loaded, Of the information recorded on the film cartridge, information on the film latitude V may be used. Therefore, the switch (C
Among the film sensitivity information input from AS), information regarding film latitude (e.g.
If it is determined that the loaded film is a reversal film, a conventional date imprinting device that imprints the date on the film as a numerical value will be used. Alternatively, the date imprinting device may be manually selected depending on the film to be loaded.

Furthermore, since printing is not normally performed in the case of reversal film, it may be configured to prohibit switching to the trimming mode when it is determined that the reversal film is VC attached.I/1a Furthermore, In the camera of this embodiment, the trimming size can be changed to three types, and the minimum F value (maximum aperture diameter) and maximum shutter speed are changed according to each trimming size. The present invention is not limited to this, and may be configured to switch the minimum F value or maximum shutter speed depending on whether or not trimming is performed.Also, while changing such a limit value, The value for issuing a warning such as a camera shake warning may be changed depending on whether or not trimming is performed. Furthermore, in this embodiment, the flash was configured to fire automatically if proper exposure could not be obtained even when the shutter speed reached a limited maximum value. Alternatively, the light emitting part of the flash may be made to protrude from the camera body to encourage the use of the flash.

In addition, for cameras with automatic exposure control mode,
In the case of the aperture-priority automatic shutter speed control mode, which prioritizes the aperture over the set value, there is a program mode in which the aperture is automatically controlled by adding restrictions to the set aperture value depending on whether or not cropping is performed. In the case of the shutter speed priority automatic aperture control mode, a restriction may be added to the calculated aperture value.

Furthermore, although the camera of this embodiment is configured so that the aperture and shutter speed change in a triangular shape, as shown in FIG. If this is done, the height of this trapezoidal shape is limited and the aperture may be limited to five.

Furthermore, although the automatic printer of this embodiment is configured to print data at the corners of the area where the subject is printed, the invention is not limited to this; (4) You can configure it so that it is printed in the white frame part, and furthermore, the subject is printed)
If data is also printed within the range, you may want to change the color of the printed data to make it easier to distinguish, or find a color position where the data is easier to distinguish. The data may be configured to be printed at that position, and the optical system for data printing may be adjusted so that the position and size of the data to be printed are determined according to the print size. It is also possible to make it easy to check the data and not affect the subject to be printed.

Furthermore, the code imprinted on the film may be configured to be imprinted as a magnetic code on a magnetic recording layer coated on the film. The data imprinted as a code is not limited to the photographing date as in the embodiment, but may also be hour, minute and second data, photographic exposure data, serial number, etc.

Incidentally, in the automatic printer of this embodiment, the printing optical system and the photometric optical system were provided separately.
A part of them may also be used, for example, a photometric light-receiving element may be placed above the @27 shutter (PS), not shown.

In addition, in the above embodiment, the imprint data is configured to be imprinted outside the photographed screen, but the imprint data is not limited to this, but may be placed in a predetermined corner or near the bottom of one screen to be photographed. A shading means is provided to block light from the subject from entering the area, and the shading means is used only when trimming is selected or always.
It may be configured such that the imprint data is imprinted in the light-shielded area.

Z week! As described in detail above in Section 1, the present invention provides a camera that can switch between a normal shooting mode for shooting a normal shooting range and a trimming mode for instructing a narrower trimming range. A trimming signal output means outputs a trimming signal indicating when the trimming signal is set, and a lower limit of the shutter speed is set higher than in the normal shooting mode according to the trimming signal. [! The present invention is characterized by having a shutter speed limiting means for switching to the side, and a recording means for recording on the film that a picture has been taken in trimming mode 1 in response to a trimming signal. When the trimming mode is selected, the low speed limit of the shutter speed is switched to the high speed side, so the possibility of shooting at a shutter speed that is more likely to cause camera shake compared to the normal shooting mode is reduced, so the trimming mode fj1
Even when shooting shadows, the possibility of subject blurring on the film due to camera shake is smaller than in normal shooting mode, so in trimming mode printing is performed at a larger enlargement magnification than in normal shooting mode. However, there is little chance that the subject will be noticeably blurred.

Furthermore, as in the embodiment, if the shutter speed reaches the low speed limit and still results in insufficient exposure, the flash is automatically enabled to emit light; therefore, it is possible to take pictures even when using the trimming mode. There is no need to narrow the brightness range.

[Brief explanation of the drawing]

Fig. 1 is a perspective view of a camera according to an embodiment of the present invention, Fig. 2 is a top view of the camera, Fig. 3 is a front view of the camera, and Fig. 4 is a view of the finder optical system and distance measuring optical system. Fig. 5 is a schematic diagram showing the trimming range, Fig. 6 is a schematic diagram showing the display within the field of view of the finder, and Fig. 7 shows the photographing range of the photographing lens and the photometry range of the photometry system. 8 and 9 are diagrams showing the display mode of the liquid crystal display device, Figure 10 is a rear view of the camera with the back cover open, and Figure f511 is the view of the camera. Enlarged front view of the code imprinting unit from the rear.
Figure tpJ12 is a vertical sectional view of the code imprinting unit, Figure ftr113 is a cross sectional view of the code imprinting unit, Figure 14 is a view of the film on which the code is imprinted, viewed from the back side, and Figure 15 is the view on the film. Figure 16 is a diagram to explain the code imprinted on the camera, Figure 17 is a block diagram showing the configuration of the automatic group and α adjustment circuit, Figure 18 is also used as the aperture. A graph showing the relationship between the shutter aperture diameter and the opening time and the flash emission timing, Fig. 19 is a graph showing the relationship between the shooting mode and the exposure value when switching to 7-lash shooting, Fig. 20 and @21 The figure shows a 70-chart showing the operation of the control microcomputer,
Fig. 22 is a flowchart showing details of step #8, Fig. 23 is a diagram schematically showing the operation, and Fig. 24 is a flowchart showing the details of step #8.
25 and 26 are respectively 70-charts showing the operation of the display microcomputer, and Fig. 25 is a block diagram showing the automatic printer of the system of this embodiment.
FIG. 28 is a time chart showing the operation. (33): ) Rimming signal output means, (CMC);
Shutter speed limiting means, (CMC) (DMC) (LED
R) (32a): Recording means. Applicant Minolta Camera Co., Ltd. Figure 2 Figure 5 Figure 8 Figure 7 DA FE Figure 16 Figure 77 Figure 15 Figure 30 6o t25 250 St) θ
l0t) 0 Shimatsuter Speed Figure 22 Details of 8 Figure 8 Figure 27 DMC Flow Timer Figure 26

Claims (1)

[Claims] 1. In a camera capable of switching between a normal shooting mode for shooting a normal shooting range and a trimming mode for instructing a narrower trimming range, when the trimming mode is selected, a trimming signal output means for outputting a trimming signal indicating the trimming signal; a shutter speed limiting means for switching the lower limit of the shutter speed to a higher speed side than in the normal shooting mode according to the trimming signal; 1. A camera capable of cropping photography, characterized by having a recording means for recording on film that photography has been taken. 2. Discrimination means for determining whether or not the shutter speed is limited to a low speed limit, and generating a low speed limit signal if the shutter speed is limited to the low speed limit; and for emitting a flash in response to the low speed limit signal. 2. A camera capable of cropping photography according to claim 1, comprising: a flash control means for outputting a flash emission signal; and a flash that is enabled to emit light in response to the flash emission signal.