JPS6337331A - Camera - Google Patents

Abstract

PURPOSE:To prevent the lack or an external form design and a careless mode setting and to improve the operability by storing an information settable signal, outputting it to an information read means, and inputting a containing cover closing signal with a second switching means to provide a storing means releasing the storage of the information settable signal. CONSTITUTION:When a first switch means 101 is operated, a first state is switched to a second state for generating signal which can set information. A second switching means 102 generates an opening/closing signal by interlocking with the opening/closing operation of a containing cover for protecting a switch, etc., in a containing part. An information reading means 103 reads information which is set by an information setting means 104, only when an information settable signal generated by following the operation of the first switching means 101 is inputted. A storage means 106 stores the information settable signal which is generated due to a fact that the first switching means 101 is switched to the second state, and also, outputs the signal to the information read means 103, and releases the storage, when a back cover closing signal is inputted from the second switching means 102.

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Application of the Invention) The present invention provides a storage for storing switches for setting modes that are rarely used, such as switches that allow setting of information required when shooting in auto bracketing mode, for example. This invention relates to an improvement of a camera equipped with a camera.

Note that the auto bracketing (more precisely called auto exposure bracketing) refers to the camera's exposure value (in the case of automatic exposure, the exposure control value is automatically calculated from the subject brightness and film sensitivity, and in the case of manual exposure, This refers to the offset of the camera with respect to the shutter speed and aperture value set by the photographer.Simply put, when photographing a certain subject, multiple photos are taken by changing the exposure value in several stages. This means that the camera automatically takes pictures.

(Background of the Invention) For example, as camera specifications such as auto bracket mode increase, the number of operation members such as operation buttons and operation levers on the outside of the camera increases. The presence of such a large number of operating members increases the probability that the photographer will operate them carelessly, and also causes many problems in terms of external design. Also, when setting the information necessary for shooting in a certain mode, for example, you must press one button with one hand while moving a dial with the other hand, which is difficult to do while holding the camera. I had the photographer do it.

Therefore, in view of the former point, in recent years, switches that are used infrequently are housed in a switch box formed on the back side of the camera, etc. This eliminates the risk of the photographer inadvertently operating the camera, and is also effective in terms of external design. However, regarding the latter point, the above-mentioned problem was clearly evident. That is, it was extremely difficult to move the dial while operating the small switch inside the switch box.

(Objective of the Invention) The object of the present invention is to solve the above-mentioned problems, and to improve operability while preventing damage to external design and careless mode setting. The goal is to provide cameras that can.

(Features of the Invention) In order to achieve the above object, the present invention provides that when the storage lid open signal is input from the second switch means, the first switch means is operated and the information setting enable signal is input. When this occurs, the information setting enable signal is stored and outputted to the information reading means, and the storage lid closing signal is input from the second switch means, thereby canceling the memory of the information setting enable signal. Even if the operation of the first switch means is stopped, the information setting enable signal generated in conjunction with the one operation is retained, and the information setting is enabled during this time. It is characterized by

(Embodiment of the Invention) FIG. 1 shows the basic configuration of an embodiment of the invention, and FIG. 2 shows its flowchart.

The first switch means 101 is disposed in a storage section that stores switches that are used relatively infrequently, and when not operated by the photographer, the first switch means 101 is in a first state in which it generates a signal that disables information setting. a second state that, when operated, generates a signal that enables information setting from the first state;
The state changes to The second switch means 102 generates an opening/closing signal in conjunction with the opening/closing operation of the storage lid for protecting the switches in the storage section, and the information reading means 103 generates an opening/closing signal in response to the operation of the first switch means 101. Only when the accompanying information setting enable signal is input,
The display means 105 reads the information set by the information setting means 104, and the display means 105 reads the information set by the information setting means 104.
It displays the contents of 3. The storage means lO6 stores the information setting enable signal generated when the first switch means 101 is switched to the second state, and outputs the signal to the information reading means 103, and the second switch means 102 The memory is cleared by inputting a back cover close signal.

When it is determined that the first stroke of the release button has not been performed, it is then determined whether or not the second switch means 102 is turned on (whether or not the back cover opening signal is generated). If it is turned on here, then it is determined whether the first switch means lot is turned on. If it is determined that the first switch means 101 is turned on, the storage means 106 stores the information enable signal generated when the first switch means 101 is turned on. Information reading means 1
03 is the information setting means 104 while the signal is being input.
The information set in is read, and the information read in this way is displayed on the display means 105. Also, the first
Even if the ON operation of the switch means 101 is stopped, the information setting enable signal stored in the storage means 106 is input to the information reading means 9103, so information setting can be performed only by operating the information setting means 104. It is possible.

Thereafter, when a back cover close signal is generated in the second switch means 102, the storage in the storage means 106 is canceled, and information setting by only operating the information setting means 104 becomes impossible.

FIG. 4 shows the arrangement of each operating member when looking from the front of the camera incorporating the device embodying the embodiment shown in FIG. 1, and FIG. 5 shows the arrangement of each operating member when looking from above. Figure 6 shows the arrangement of each operating member when viewed from the back side.
In Figures ~6, l is the release button, 2 is the operation lever for selecting the shooting mode of either quick shot (C) or single shot (S), and 3 is the operation lever for selecting the self-timer./<-14
5 is the exposure mode selection knob that selects shutter priority (T, v), aperture priority (Av), or manual (M) exposure mode, and 5 is the shutter speed, aperture value, or number of exposure steps during auto bracket shooting. Used when setting information (for example, information for every 0.5 step or every 1 step), etc.
For example, a so-called electronic dial, swM, is equipped with 2-bit conductive patterns and brushes that are 90 degrees out of phase with each other.
is a switch for setting an aperture value, and the aperture value can be changed by pressing the switch swM and operating the dial 5 in the manual exposure mode. Reference numeral 6 denotes a switch lid of a storage section 7 that stores switches that are rarely used, swABR represents an auto bracket switch stored in the storage section 7, and swME also represents the storage section 7.
This is a multiplex shooting switch housed in the camera.

FIG. 3 shows a specific example of an electric circuit in which a microcomputer COM is used to control a series of operations.

The light-receiving element SPC receives reflected light from the object and outputs a light-receiving signal to a high input impedance operational amplifier OP1 having a compression diode DI connected to a feedback circuit. The operational amplifier OPI outputs logarithmically compressed object brightness information By via the resistor R1. Variable resistor VR1 connected to constant voltage source VGI outputs film sensitivity information Sv. An operational amplifier OP2 whose feedback circuit is connected to a resistor R2 calculates and outputs photometric information Ev=(By+Sv). The photometric information Ev is converted into a 4-bit digital value by the A/D converter ADC, and is input to input ports PGO to PG3 of the microcomputer COM.

When the dial 5 is operated, a number corresponding to the number of clicks is counted by the dial interface circuit DIF, and the value is converted into 4-bit information and input to the input port PH0NPG3 of the microcomputer COM. The information in the dial interface circuit DIF is such that the pulse signal is sent to the output port P of the microcomputer COM.
It is reset by input from E3. Depending on which mode is selected by the exposure mode selection knob 4, the two series of exposure mode switches 5w5EL are turned on and off, and 2-bit information corresponding to the selected exposure mode is sent to the input ports PPO to PPI of the microcomputer COM. is input.

When the battery BAT is loaded into the camera, the microcomputer COM and display system decoder TD are activated.

AD, FD and dial interface circuit DI
A power supply Vbat is supplied to F and the like. Also, the release button 1
When the first stroke switch Swl connected to the input port PAO is turned on by the first stroke of The voltage is supplied as a power supply Vcc to circuits that consume a relatively large amount of power, such as operational amplifiers OPI and OP2 for photometry.

Input ports PA1-11 of microcomputer COM
The second stroke switch SW2 is turned on by the second stroke of the release button L, and turned off by raising the mirror.
Mirror up switch swM that turns on when the mirror is down
RUP, fi Charging completion detection switch swCGE, film 1 that turns on when mechanical charging is completed
Film switch s that turns on every time frame feeding is completed
wFLM, trailing curtain switch 5w that turns on when trailing curtain travel is completed
CN2, a self-switch 5w5E that is turned on when the self-timer is set by the operating lever 3;
LF, a switch swcs that is turned on when a quick shooting mode is selected and turned off when a single shooting mode is selected using the operation lever 5, the aperture value setting switch swM, and the switch lid 6 are closed. Switch 5WSET, which is sometimes off and turns on when opened.
The multiplex photography switch swME and the auto bracketing switch swABR are connected to each other.

The bases of transistors TRO-TR2 are connected to the output ports PEO-PE2 via resistors RIO-12, and the transistors TRO-TR2 are connected to the first clamping magnet MG.
It controls the energization of the leading curtain magnet MCI that drives the O1 leading curtain and the trailing curtain magnet MG2 that runs the trailing curtain. Also, resistor 113~ for FD, PC, and FB
The bases of transistors TR3 to TR5 are connected through transistors 15 to 15, transistor TR3 drives charging motor MD, transistor TR4 drives rewinding motor MC, and transistor TR5 winds the film at high speed. The drive of each motor MD is controlled respectively.

From the output port PTD, the contents of the shutter speed information register RGTv in the microcomputer 200M are output to the decoder TD, and the decoder TD converts the contents into a signal for displaying the shutter speed seconds and displays it on the connected liquid crystal, etc. The signal is output to the configured display device 5EG1.

Output ports PFL and PABR output "l" (meaning high level) or "0" (meaning low level) signals to decoder AD, and decoder AD outputs "l" signals from PFL. If a signal is input,
The connected display 5EG2, which is composed of a liquid crystal, etc., outputs a signal for displaying a bracket mark point reduction. When a signal of "1" is input from PABR (output capo), a signal for displaying the top bracket mark on the display 5EG2 is output.

Output capo) The PME outputs the signal "l II" or "09'" to the display 5EG4 composed of a liquid crystal or the like.
When a signal of "1" is input to the display device 5EG4, a multiple shooting mark is displayed.

From the output port PFD, the microcomputer 200M
The contents of the aperture value information register RGAv, the contents of the auto bracketing step information register RGBR, or the contents of the multiplex number information register RGMH are output to the decoder FD. The decoder FD outputs a signal for numerical display corresponding to each of the above-mentioned contents to a connected display device 5EG5 composed of a liquid crystal or the like.

The contents of the aperture value information register RGAv in the microcomputer 200M are output from the output port PAV to the aperture control drive circuit DAY. The aperture control drive circuit DAV is connected to the drive actuator CAV.
For example, the information converted into actual aperture information is output to a stepping motor or the like, and this is driven to perform appropriate aperture control.

Next, the operation of the microcomputer COM will be explained with reference to flowcharts shown in FIGS. 7-9.

When the battery BAT is loaded into the camera and the power supply Vbat is generated, the microcomputer COM starts the operation from the start of the flowchart shown in FIG.

[Step l] Suppose that the photographer only makes the first stroke of release button 1, and the first stroke switch s
When the wl ON signal is input to the input PAO, the process proceeds to step 2.

[Step 2] Output a signal of 1° from the output port PF, turn on the transistor T Rbat, and turn on the power supply Vc.
Then, the photometry timer is started. The photometry timer is used to continuously supply power Vcc for a predetermined period of time after the off signal is input to the first stroke switch swl, so that even if the photographer releases his/her hand from the release button 1, the photometry state continues for a predetermined period of time. It is possible to check the setting information and change the setting information while viewing the display using the exposure mode selection knob 4. Note that this configuration can be easily performed using a hardware timer built into the microcomputer COM.

[Step 3] The photometric information Ev converted into a 4-bit digital value by the A/D converter ADC is stored in the internal register RGEv.

[Step 4] It is determined whether the shutter priority mode is set based on the input states of the input ports PPO and PPI. If the shutter priority mode is currently set, the process proceeds to step 5.

[Step 5] Subtract the contents of the shutter information register RGTv, which stores the information set by operating the dial 5, from the contents of the register RGEv, and store the result (aperture information Ay) in the aperture information register RGAv. let It is assumed that the contents of all registers in the microcomputer 200M are held while the battery BAT is loaded. Also, if you load the battery BAT for the first time,
It is assumed that a frequently used value, for example, information such as 17125 seconds is initially set.

[Step 6] The contents of the register RGBH that stores the auto bracketing exposure step number information are stored in the aperture bracketing step number register RGBA. Also, the contents of the shutter bracket stage number register RGBT are set to zero (0).

[Step 7] Determine the state of flag FABR indicating whether auto bracketing mode is set. Assuming that auto bracketing mode is not currently set,
Proceed to step 8.

[Step 8] Determine the state of flag FME indicating whether multiple shooting mode is set.

Assuming that the multiple shooting mode is not currently set, the process advances to step 9.

[Step 9] Auto bracket switch swAB
A flag FsAB indicating whether R has been operated is reset to O. Also, a flag FsME indicating whether the multiplex photographing switch swME has been operated is reset to O.

[Step 10] The contents of the aperture information register RGAv are output from the output port PFD, and the contents of the shutter information register RGTv are output from the output port PTD. As a result, the aperture value calculated by the calculation is displayed on the display 5EG5, and the set shutter speed time is displayed on the display 5EGl.

[Step 11] The second stroke of the release button 1 is performed, and it is determined whether or not the on signal of the second stroke switch sw2 is input to the input capo PAL.
Assuming that the on signal of the younger 2-stroke switch SW2 is not input, the process returns to the start. Further, while the ON signal of the first stroke switch swl is being input, calculation information can be obtained from the subject brightness information, film sensitivity information, and setting information by this routine, and these information can be displayed.

Further, if the aperture priority mode is set, the process proceeds from step 4 to step 12 and step 13.

[Step 13] Subtract the contents of the register RGAv, which stores the information set by the operation of the dial 5 and the aperture value setting switch swM, from the contents of the register RGEv, and add the result to the shutter information register RGT.
Store it in v.

Note that when the battery BAT is loaded for the first time, a frequently used value, for example, information such as F5.6 is initially set.

[Step 14] The contents of the bracket stage number register RGBH, which stores the exposure stage number information of auto bracketing, are stored in the shutter bracket stage number register RGBT. Also, the contents of the register RGBA for the number of aperture rebracketing stages are set to zero.

Thereafter, in the aperture priority mode, the same sequence as in the shutter priority mode is performed, and the aperture value set in step IO is displayed on the display 5EG5, and the shutter speed calculated by the calculation is displayed on the display 5EG1, respectively. Is displayed.

If the manual exposure mode is set, the process goes from step 4 to step 12 to step 15.

[Step 15] The contents of the register RGTM storing the shutter speed information set by operating the dial 5 are stored in the shutter information register RGTv.

This is because when auto bracket shooting is set in manual exposure mode, the contents of register RGTv change every time you shoot.

This is to store the information set by operating the dial 5 as is, and the details will be described later.

After that, the same sequence as in the aperture priority mode is followed, and the aperture value set in step 10 is displayed on the display 5EG5.
The set shirt time is displayed on the display SEG 1.

Next, we will describe information setting by dial operation while the photometry timer is operating. When the pressing of the release button 1 (first stroke) is stopped during the above-described sequence, the off signal of the first stroke switch swl is input, and the program proceeds from step 1 to step 20.

[Step 201: Determine whether or not the switch lid 6 has been opened based on the state of the switch 5w5ET. Assuming that the switch cover 6 remains closed, the input capo) PA
Since the off signal of switch 5w5ET is input to 9,
Proceed to step 21.

[Step 21] It is determined whether or not the photometry timer is in operation. Here, since the photometry timer has been activated in step 2, the process advances to step 22.

[Step 22] It is determined whether the shutter priority mode is set based on the input states of the input ports PPO and PPI. If the shutter priority mode is currently set, the process advances to step 23.

[Step 23] Here, an information reading routine associated with the operation of the dial 5 is executed. Here, the information reading routine accompanying the dial operation will be explained with reference to FIG.

r Information reading routine J [Step 80] Store the information input to the input ports PH0 to PH3 in the dial register RGH. At this time, the register RGH stores a numerical value corresponding to the number of clicks on the dial 5 and information as to whether the numerical value is positive or negative depending on the direction of rotation of the dial 5. That is, 4-bit information indicating how many steps to shift up or down from the current information is stored.

[Step 81] Output the pulse signal of the output boat PE3. As a result, the dial interface circuit D
The value of IF is reset to zero.

[Step 82] Return to the original step.

Returning again to the flowchart in FIG.

[Step 24] The numerical value set by the dial operation (the contents of register RGH) and the shutter information (the contents of register R
(contents of GTv) and stored in the shutter information register RGTv again.

Also, the contents of the shutter information register RGTv are stored in register R.
Store it in GTM.

[Step 25] It is determined whether or not a certain code indicating the valve mode located next to the longest second of the shutter speed is stored in the register RGTM.If it is not currently the valve mode, go to NEXTl, that is, step 3 jump.

In this way, during the photometry timer after the press of the release button L (first stroke) is stopped, the setting information can be changed by operating the dial 5, and then the routine from step 3 described above is executed. In step 10, the aperture value and shutter speed are displayed on the display 5EGI.
5EG5, respectively.

Further, if the aperture priority mode is set, the process proceeds to step 22 -> step 26 -> step 27.

[Step 27] Similar to step 23, here, an information reading routine associated with the operation of the dial 5 is executed.

[Step 28] The numerical value set by the dial operation (the contents of register RGH) and the aperture value information (the contents of register RG
Av contents) and register RG for aperture information again.
Store it in Av. Also, in aperture priority mode, NEX
The aperture value and shutter speed can be displayed on the displays 5EGI and 5EG5 in step 10, as in the case of the shutter speed priority mode.

If the manual exposure mode is set, the process proceeds from step 22 to step 26 to step 29.

[Step 29] Determine the on/off state of the aperture value setting switch swM. In the manual exposure mode, operate the aperture value setting switch swM and operate the dial to set the aperture value, and only by dialing the shirt button. Since the configuration is such that the seconds and hours can be changed, when the switch swM is on, the process proceeds to the same routine (step 27) as in the aperture priority mode, and when it is off, the shutter priority mode is executed. The program then proceeds to execute the same routine (step 23).

When a predetermined period of time has elapsed after the pressing operation of the release button 1 was stopped, the photometry timer operation ends.

Along with this, the program moves from step 21 to step 3.
Proceed to 0.

[Step 30] Output boat PTD, PFL.

The outputs of PABR, PME, and PFD are set to 00'', and all displays on display 5EGI to 5EG5 (however, display 5EG2 is not present) are turned off. Also, the output of output port PF is set to 0, and transistor TRbat is turned off. to stop the supply of power N''cc.

[Step 31] Similar to step 9, both the flag FsAB indicating whether the auto bracketing switch swABR has been operated and the flag FsME indicating whether the multiple shooting switch SWME has been operated are reset to 0.

The program then jumps to the start.

Therefore, after the photometry timer ends, step 1 → step 2
The standby mode of 0→step 21→step 30→step 31 is repeated.

Next, a description will be given of the time when the auto bracketing mode is set. First, a case will be described in which only the opening operation of the switch cover 6 is performed to set the auto bracketing mode. When the switch cover 6 is opened, the switch 5w5
ET is turned on, and this on signal is input to input capo PA9. The program then proceeds from step 20 to step 40.

[Step 40] Auto bracket switch Sw
The ABR is determined. Since the switch cover 6 has just been opened and the auto bracket switch 5WABR has not been operated, the process proceeds to step 41.

[Step 41] The multiplex photography switch swME is determined. Similarly, since the multiplex photography switch swME has not been operated, the process advances to step 42.

[Step 42] The flag FsME indicating whether or not the multiple shooting switch swME has been pressed is determined. In the initial state of loading the battery BAT and the first stroke switch swl being on, the flag Fs is set in step 9.
Since ME has been reset to 0, the process advances to step 43.

[Step 43] Auto bracket switch SwA
Flag FsAB indicating whether or not a BR pressing operation has been performed
As in the case of step 42, step 9
Since the flag FsME is reset to O,
Step 21 Hesitate.

If the switch M6 is opened in this way and only the ON signal of the switch 5WSET is input, nothing is executed.

Next, from the above state, auto bracket switch 5WAB
A case will be described in which the pressing operation of R is performed once. When the auto bracket switch swABR is pressed, an on signal is input to the input capo (FALL). The program then proceeds from step 40 to step 44.

[Step 44] It is determined whether the contents of the register RGTM are in the valve mode. If the contents are in the valve mode, the process returns to the start and the auto bracketing mode is not entered.

If the valve mode is not set, proceed to step 45.

[Step 45] Auto bracket switch SwA
A flag FsAB indicating that the BR is turned on is set to 1, and a flag FsME indicating that the multiplex shooting switch swME is turned on is reset to 0.

[Step 46] Output port PTD, PFL.

Set the outputs of PABR, PME, and PFD to "0" and turn off all the displays on display 5EGI to 5EG5. Turn it on. This allows the photographer to clearly know that the auto bracketing mode has been set.

[Step 47] A flag FABR indicating that the auto bracketing mode has been set is set to 1.

[Step 48] Similar to step 23 or step 27, an information reading routine associated with the operation of the dial 5 is executed. In this case, in step 80, for example, if the stage number information of 0.5 is set by the dial 5, the stage number is r-0,5,0°0.5'', and if l is set, r Exposure was automatically changed in steps of -1, 0, and IJ. Three preset auto bracket shots will be taken. In addition, the above “−〇.

Shooting with the number of stops of 5, 0, 0, 5J means an exposure value that is -0.5 steps under the standard exposure value calculated by calculation, a standard exposure value, or 0 to the standard exposure value. This means that images are taken consecutively at three levels of exposure value: .5 levels overexposure value.

[Step 49] Bracket stage number register RGB
Add the contents of H and the contents of the dial, and register RG again.
Store it in BH. As mentioned above, the minimum resolution by one click of the dial 5 can be set freely in increments of 0.5 steps or in increments of 1 step. Note that if the resolution is different from the shutter speed and the aperture value, a program that multiplies the contents of the register RGBH by an integer may be inserted, and a detailed explanation will be omitted here since it is not related to the actual situation. Further, the contents of the register RGBH are output from the output port PFD, and the display 5EG5 displays a numerical value indicating the number of stages, for example rO, 5J. The decoder FD and display 5EG5 used at this time are also used to display the aperture, and the aperture value is decoded from the apex value Av to the F number number, and the auto bracket is decoded from, for example, 0.5. Since it is a numerical value for each stage, it is necessary to change the decoded contents, but if the output from the output port PFD is, for example, 5 bits, 32 types of data can be sent, so the aperture value display is Fl, If every 0.5 steps from 4 to F32, the total is 1
4 types, if the auto bracket display is θ ~ 5 and every 0.5 step, there are 11 types in total, 30 types in total, 31 types when blank code is added, and a certain constant is added when sending data to the output port PFD. Decoder FD by
can determine which information it is.

Appropriate numerical display becomes possible.

[Step 50] A flag FMH indicating whether the multiple photography mode is set is determined. If the multiple photography mode is not set, the process returns to the start. If the mode is multiple shooting mode, the process advances to step 51.

[Step 51] Set the contents of the register RGME for the number of multiple shots to "3". This is because the number of auto bracket shots is predetermined to be three, so even if the number of times for multiple shots is set arbitrarily, it is mandatory. The program returns to the start in order to prevent the photographer from making operational mistakes and to eliminate the risk of erroneous exposure. Furthermore, once the on signal of the switch 5WABR is input, the flag FsAB is set to 1 in step 45, so even if the swABR off signal is input, the program continues from step 40 → step 41 → step 42. →Step 4
3→Step 48, the auto-bracketing step number change mode can be maintained using the dial 5, and the photographer can operate the dial 5 while stopping the pressing operation of the switch swABR.

The auto bracket stage number changing mode can be canceled by turning on the first stroke switch swl, or by closing the switch lid 6 and turning off the switch 5w5ET. In other words, when the ON signal of the first stroke switch SWI is input, the program progresses in the order of step 1 → step 2 → step 3 →..., and the flag FsAB is reset to 0 in step 9, and its display is also In step 10, the display switches to normal display. Also switch 5w5ET
When the off signal is input, step 20 → step 2
In the process of the program proceeding from step 1 to step 30 to step 31, the auto bracket mark display disappears at step 30, and the step 31 flag FsAB is reset, so that the program does not proceed to the auto bracket stage number change mode again.

Next, exposure calculation in auto bracketing mode will be explained. In the case of shutter priority mode, the contents of the bracket stage number register RGBH are stored in the aperture bracket stage number register RGBA as described in step 6, and in the case of shutter priority mode and manual exposure mode, the contents of the bracket stage number register RGBH are stored in step 14.
As mentioned above, the shutter bracket stage number register RGB
T memorizes each. In step 7, since the auto bracketing mode is set and the flag FABR is set to 1, the process advances to step 52.

[Step 52] Bracket stage number register RGBR
Determine whether the content of
Since multiple shots are taken, it is meaningless, so it is necessary to prohibit auto bracket shooting. Therefore, in this case, the process advances to step 53.

[Step 53] A flag FABR indicating auto bracketing mode is reset to 0. Matade Capo) PAB
Set the R output to “0” and turn off the auto bracket mark display.

Next, by proceeding to step 8, the auto-bracketing exposure calculation is not performed, the flag FsAB is reset to 0, and a normal routine is executed.

In step 52, if the contents of the bracket stage number register RGBH are not zero, it is necessary to perform exposure calculation and display of the auto bracket mark using the stage number information, so the process proceeds to step 54.

[Step 54] Set the output of the output boat PABR to “1”.
°Flip and display the auto bracket mark. This is when the switch 5WSET is turned off by closing the switch cover 6 from the auto bracket mode setting state.
This is because all the displays are turned off in step 30, so if the first stroke switch swl is turned on, it is necessary to turn it on again.

[Step 55] It is determined whether or not the first stroke switch SW1 is turned on. If it is turned on, the process proceeds to step 56.

[Step 56] The contents of the aperture information register RGAv and the contents of the aperture bracket stage number register RGBA are added and stored in the register RGAv again. Also, the contents of the shutter information register RGTv and the contents of the shutter bracket stage number register RGBT are added, and the register RG is added again.
Store it on TV. This means that the aperture information calculated in the shutter priority mode and the shutter speed information calculated in the aperture priority mode are changed in accordance with the number of autobracket stages. In other words, if the autobracketing step number is set so as not to be a negative number at step 49, the value after the calculation at step 56 will be an exposure value on the under side of the standard exposure value. In addition, in manual exposure mode, since step 14, which is the same as in aperture priority mode, is passed, the shutter speed is changed, and the aperture value is not changed as in conventional cameras, so only exposure with a constant depth of field is used. Auto-bracketing photography is now possible.

Further, in step 55, the first stroke switch sw
If it is determined that l is off, the exposure calculation in step 56 is not performed because the photometry timer is operating.
In step 10, the standard exposure value will be displayed.

Even in this case, when taking a picture, the first stroke of the release button L is always made, so step 56 is always passed.
Therefore, there is no problem with auto bracketing photography.

In this way, in auto bracketing mode, if the first stroke switch swl is turned on, the exposure value with auto bracketing applied, that is, the underexposure value in this example, is displayed, and the metering timer is activated. The standard exposure value will be displayed inside. This allows the photographer to easily recognize the exposure value of auto bracketing.

Next, a case will be described in which the valve mode is set by operating the dial 5 after the auto bracket mode is set.

Bracketing during bulb photography is basically meaningless, so it is more effective to cancel auto bracketing mode. Therefore, if it is determined in step 25 that the mode is the valve mode, the process advances to step 57.

[Step 57] Set the PABR output to “0°
” and turn off the auto bracket mark display. Also, reset the auto bracket mode flag FABR to 0.

Next, a description will be given of when the multiple shooting mode is set.

The switch swM is activated in conjunction with the opening of the switch lid 6.
When the ON signal of E is input, the process proceeds from step 41 to step 60.

[Step 60] A flag FsME indicating that the multiplex photographing switch swME is turned on is set to 1. Also, a flag FsAB indicating that the auto bracket switch swABR is turned on is reset to 0.

[Step 61] Output boat PTD, PFL.

Set the outputs of PABR, PME, and PFD to "0" and turn off all displays. Next, output the output of only PME (output) and put the multiple shooting mode mark on the display 5EG.
4.

[Step 62] Flag FME indicating multiple shooting mode
Set to 1.

[Step 63] It is determined whether the mode is auto bracketing mode or not. If it is auto bracketing mode, the process proceeds to step 64.

[Step 64] Since the mode is auto bracketing, the number of multiple shots is forcibly set to three, as in step 51, that is, the contents of the register RGMH for the number of multiple shots are set to "
3".

If the auto bracketing mode is not set in step 63, the process advances to step 65.

[Step 65] Similar to step 48 and the like, an information reading routine associated with dial operation is executed.

[Step 66] Add the contents of the multiplexing number register RGMH and the contents of the dial register RGH, and store the result in the register RGMH again. Since the number of times of multiplexing is an integer, if the resolution of one click of the dial 5 is 0.5 steps, the contents of the dial register RGH are doubled and then added. It is also necessary to prevent the contents of the register RGH from becoming a negative number, but this is omitted here.

[Step 67] The contents of the multiple-sheet state register RGMH are output from the output capo PFD and displayed on the display 5EH5.

The program then returns to the start. Furthermore, once the ON signal of the switch swME is input, the flag FsME is set to 1 in step 60, so even if the OFF signal of the switch swME is input thereafter, the flag FsME is set to 1 in step 60.
1→Step 42→Step 63, and it becomes possible to maintain the multiple shooting number setting mode. The flow in Figure 7 shows that to shift from the auto bracketing step number change mode to the multiplex shooting setting mode, you only need to turn on the switch swME once, and to switch vice versa, you only need to turn on the switch swABR once. It is also clear from

Next, if the number of times of multiplexing is set once and then the number of times of multiplexing is set to zero (0), it is necessary to cancel the multiplex photography mode and turn off the multiplex photography mark. Since the flag FME is set to 1 in step 8, this program is executed by proceeding to step 68.

[Step 68] Register RGMH for multiple shooting/number of shots
If the content is zero, the process advances to step 69.

[Step 69 Flag FME indicating multiple shooting mode
Reset to 0. Also, set the output of the output boat PME to “0”.
″′ to turn off the multiplex shooting mark display.

If the contents of the register RGME for the number of times of multiple photographing are not zero in step 68, the process proceeds to step 70.

[Step 70] Set the PMH output to “1”
The multiple shooting mark will be displayed. This is step 3
This is to notify the photographer that the multiple shooting mode is in effect when the first stroke of the release button 1 is made again since all the displays are turned off at 0.

As described above, the preparation stage for photographing is completed.

Next, the sequence after the second stroke of the release button 1 is performed will be described. When the second stroke of the release button 1 is performed and the on signal (release signal) of the second stroke switch sw2 is input to the input port PA1, the process proceeds from step 11 in FIG. 7 to step 100 in FIG. 9.

[Step 100] It is determined whether the auto bracketing mode is set or not based on the state of the flag FABR. If it is auto bracket mode, go to step 101.
Otherwise, proceed to step 102.

[Step 101] Set the output of output port PFL to °゛1
°, and the auto bracket mark on the display 5EG2 is displayed blinking. This allows the photographer to reliably know that auto bracket photography has started.

[Step 102] It is determined whether the ON signal of the self-switch 5ELF is input to the input port PA6. If the ON signal is input, it means that the photographing is by self-timer, so the process goes to step 103; otherwise, the process goes to step 104.

[Step 103] A self-timer measures 10 seconds.

[Step 104] Output the contents of the aperture information register RGAv from PAV. As a result, the aperture control drive circuit DAV converts the contents of the register RGAv into actual aperture information, and starts aperture control via the aperture drive actuator CAV such as a stepping motor.

[Step 105] A pulse signal is output from the output port PEO to turn on the transistor TRO and energize the first clamping combination magnet (mirror-up magnet) MGO.

As a result, the mirror is raised by a known spring force.

[Step 106] It is determined whether or not the ON signal of the switch sMRUP for detecting the completion of mirror up is input to PA2. This loop is repeated until the image is completely uploaded, and when the image is completely uploaded, the process proceeds to step 107.

[Step 107] Shutter information register RGTv
Since the content of is an apex value, it is converted (decompressed) into real-time data.

[Step 108] A pulse signal is output from the output port PE1, the transistor TRI is turned on, and the shutter front curtain magnet (MCI) is energized. This causes the shutter front curtain to run.

[Step 109] It is determined whether the contents of the register RGTM indicate the valve mode.

If the valve mode is set, the process proceeds to step 110; otherwise, the process proceeds to step 111.

[Step 110] Wait for the off signal of the second stroke switch SW2 to be input. Since this is the valve mode, it is necessary to keep the shutter open while the on signal of the second stroke switch SW2 is input. This is because there is.

[Step 111] Since it is not the valve mode, a real time count is performed using the data expanded in step 107, and the calculated shutter time is measured.

[Step 112] When the real time count ends, a pulse signal is output from the output port PE2, and the transistor TR2 is turned on to energize the shutter trailing curtain magnet MG2. This causes the shutter trailing curtain to run.

[Step 113] It is determined whether or not the ON signal of the shutter rear curtain switch 5wCN2 is input to the input boat PA5. Here, the process is performed until the ON signal is input, that is, until the running of the shutter rear curtain is completed. This loop is repeated, and when completed, the process proceeds to step 114.

[Step 114] The output of the output capacitor (PAV) is set to "0". As a result, the diaphragm returns to its open state.

[Step 115] The output of the output capacitor PD is set to l'', the transistor TR3 is turned on, and the charging motor MD for mirror down and shutter charging is rotated.

[Step 116] It is determined based on the state of flag FMH whether the multiple shooting mode is set. If it is the multiple shooting mode, the process proceeds to step 117; otherwise, the process proceeds to step 120.

[Step 117] Subtract 1 from the contents of the multiplexing number register RGME and store it in the register ROMH again.

[Step 118] It is determined whether the contents of the multiplexing number register RGME are zero. If the contents are zero, the process proceeds to step 119; if not, the process proceeds to step 121.

[Step 119] Since the content of the multiplexing number register RGME is O, it means that multiplex photography has ended, so the flag FME indicating the multiplex photography mode is reset to O. Also, set the PME output to "O" and turn off the multiple shooting mark display.

[Step 120] Start a timer for film feeding. Also, the output of the output port PB is set to "L", the transistor TR5 is turned on, and the film feeding motor MB is turned on.
Rotate.

If the multiplex shooting mode is continued, the contents of the multiplexing number register ROMH are not zero, so the process advances from step 118 to step 121, and since step 120 is not passed, film feeding is not performed.Therefore, multiplex shooting is not performed. It will be done. Furthermore, when multiple photography is completed, the contents of the register BGMH become zero, so film feeding is performed in step 120 after canceling the multiple photography mode as described above.

[Step 121] Determine whether or not the on signal of the charge completion detection switch swCGH is input to the input capo PA3. If the on signal is not input, that is, the charging is not completed, step 123 The process proceeds to step 122, and when charging is completed, the process proceeds to step 122.

[Step 122] Since charging is completed, set the output of the output capo-PD to "0°°" and turn the charging motor MD
Cut off the power to.

[Step 123] It is determined whether or not the on signal of the switch swFLM, which is turned on every time one frame of film is fed, is input to the input capo FA4.If the on signal is not input, that is, If the feeding of one frame of film has not been completed, the process proceeds to step 124, and when it is completed, the process proceeds to step 125.

[Step 124] Determine the state of the film feeding timer. When the film is finished, no further film feeding is possible, so the switch swFLM is never turned on, and in such a case, the timer for film feeding, which is, for example, a one-second timer, finishes counting. When the time measurement is completed, proceed to step 15O, otherwise proceed to step 1
21 and repeats the aforementioned sequence (step 121→step 123).

[Step 125] In step 123, switch s
When it is detected that the FLM off signal has been input, the output of the output port FB is set to zero, the transistor TR5 is turned off, and the film feeding motor MB is stopped.

[Step 126] It is determined whether the auto bracketing mode is set or not based on the state of the flag FABR. If it is not auto bracketing mode, step 132
If so, proceed to step 127.

[Step 127] Determine whether or not auto bracket shooting has been performed three times.As mentioned above, auto bracket shooting is shooting that is performed continuously at three levels of exposure: under, standard, and over. If the three shots have not been completed, the process advances to step 128.

[Step 128] The contents of the aperture bracket step register GRBA are subtracted from the contents of the aperture information register RGA■, and the result is stored in the register RGAv again.

Also, the contents of the shutter bracket stage number register GRBT are subtracted from the contents of the shutter bracket stage information register RGTv, and the result is stored in the register RGTv again. Here the seventh
Similar to step 56 in the figure, the same program can be used for shutter priority, aperture priority, and manual exposure modes.
This is because the contents of T have been changed. It is clear from this arithmetic expression (subtraction formula) that the second shooting will result in standard exposure, and the third shooting will result in overexposure.

[Step 129] The contents of the registers RGAv and RGTv are output from the output ports PFD and PTD, and the shutter speed information and aperture value information at this time are displayed.

The program then jumps to NEXT2, step 104. In other words, regardless of whether the second stroke switch SW2 is on or off (regardless of whether a release signal is generated or not), the next photographing starts. Furthermore, even if the shooting at this time is in the self-mode, the next shooting starts without executing the 7-luff timer for the second and third times.

[Step 130] It is determined whether the off signal of the first stroke switch SW2 is input. If the off signal is not input at this time, step 128.
The display calculated in step 129 can be viewed.

In other words, the final overexposure value can be confirmed at this time. Therefore, since the first underexposure value can be seen in the discrimination display in step 55, all exposure displays of the underexposure value, standard value, and overexposure value during auto bracket shooting can be confirmed in the shooting sequence. becomes possible. When the off signal of the first stroke switch sw2 is input, the process proceeds to step 131.

[Step 131] A flag FABR indicating auto bracketing mode is reset to O. Matade Capo) PF
Set the L output to °゛0'' and turn off the flashing auto bracket mark.

The program then returns to start and enters standby mode.

Next, a case where the auto bracket mode is not set will be described. In this case, since the flag FABR is O, the process advances from step 126 to step 132.

[Step 132] Based on the on/off state of the switch 5wC5 input to the input port PA7, it is determined whether the mode is continuous shooting mode or single shooting mode. In the case of quick shooting mode, the process returns to the start, and in this case, when the release button L is pressed.・The pressure operation is performed, and the first. Since the ON signal of the second stroke switch swl, 2 has been input, the next photographing begins. In the case of single shooting mode, the process advances to step 133.

[Step 133] The camera waits for the off signal of the first stroke switch SW2 to be input. Since this is a single shooting mode, the next shooting sequence will not proceed unless the photographer stops pressing the release button 1. When the off signal is input, the process returns to the start.

Next, we will discuss the case where the film ends during shooting. In this case, as mentioned above, the time measurement by the film timer, which is a one-second timer, for example, ends, so step 12
4, proceed to step 150.

[Step 150] Set the output of the PC to “I”.
II, the transistor TR5 is turned on and the rewind motor MC is rotated. This starts rewinding the film.

[Step 151] Start a rewind timer used to detect whether or not rewinding of the film has finished.

[Step 152] Film switch 5WFLM
If the state has changed, the process returns to step 151 and starts the rewind timer again. If there is no change, the process advances to step 153.

[Step 153] It is determined whether or not the time measurement by the rewind timer has ended. If it has not ended, the process returns to step 152.

As can be seen from the above, step 152. The process proceeds through the loop of step 153, and when the completion of feeding of one frame is detected, the process proceeds from step 152 to step 151, and this loop is repeated when the film is rewound. After that, when all the films are wound up in the cartridge, for example, the cartridge stops rotating and the state of the film switch swFLM no longer changes. If this is detected, the process proceeds to step 154.

[Step 154] The output of the output boat PC is set to 0, the transistor TR5 is turned off, and the rewind motor MC is stopped. This completes the rewinding of the film.

[Step 155] A flag FABR indicating auto bracketing mode is reset to O. Matade Capo) P
Set the FL output to 0" and turn off the flashing auto bracket mark.

The program then returns to the start.

Also, during auto bracket shooting, in other words,
If you have to take a series of shots, but the film runs out midway through, step 1 after the 1st or 2nd frame.
In such a case, auto bracketing should not be continued on the newly loaded film, as there is a risk that the subject may be different or the photographer may misunderstand. It is desirable to notify the photographer of this and cancel the auto bracketing mode at the same time. Looking at this in the flowchart of Figure 9, when the film ends after the auto bracketing mark is displayed blinking in step 101, Automatically moves to film rewind. While this film rewind is in progress, the flashing display of the auto bracket mark has not yet been canceled. Therefore, the auto bracket mark, which would not normally be displayed, is displayed during film rewind. The photographer can know that the film has ended without the auto bracket shooting being completely completed.

In other words, this is the warning display. Furthermore, since the flag FABR indicating auto bracketing mode is reset to O in step 155, there is no longer any inconvenience that occurs in conventional cameras, such as continuing hors de veux racket photography on newly loaded film.

According to this embodiment, for example, when a signal indicating that the switch lid 6 is opened and a signal indicating that the auto bracket switch swABR is turned on are generated, the flag F5A is turned on in step 45.
Because B becomes “l IT.”

After that, even if you stop pressing the automatic bracket switch swABR, the sequence continues from step 40 → step 41 → step 42 → step 43 → step 48, and in step 48, the exposure required for shooting in this mode is determined. It is possible to set or change the stage number information, that is, by simply operating the dial 5, the information can be set, resulting in very good operability. Furthermore, since the information set in step 49 is displayed, the photographer can set the information while looking at the display, and can reliably know the information at the time.

Furthermore, since the step information change mode can be canceled by closing the switch cover 6, it is possible to take advantage of safety and design merits with sufficient consideration given to ease of operation.

(Effects of the Invention) As described above, according to the present invention, when the storage lid open signal is input from the second switch means, the first switch means is operated, and the information setting enable signal is input. When this occurs, the information setting enable signal is stored and outputted to the information reading means, and when the storage lid close signal is input from the switch means of $2, the memory of the information setting enable signal is released. Even if the operation of the first switch means is stopped, the information setting enable signal generated in conjunction with the one operation is retained, and the information setting is enabled during this time. From damaging the external design,
Operability can be improved while preventing careless mode settings.

[Brief explanation of drawings]

FIG. 1 is a block diagram showing one embodiment of the present invention. FIG. 2 is a flowchart, FIG. 3 is a circuit diagram showing a microcomputer and peripheral circuits embodying the embodiment shown in FIG. 1, FIG. 4 is a front view of the camera, and FIG. Similarly, FIG. 6 is a back view, and FIGS. 7 to 9 are flowcharts. 1...Release button, 2.3...Operation lever, 4...Exposure mode selection knob, 5.Old...
・Dial, 6...Switch cover, 7...
・Storage section, swABR...Auto bracket switch, swME...Multiple shooting switch, CO
M・Old...Microcomputer, 101...
First switch means, 102... Second switch means, 103... Information reading means, 106.
...Memory means.

Claims (1)

[Claims] (1) It is placed in a storage section that houses switches that are relatively infrequently used, and when operated, enables information setting from the first state, which generates an information setting disabled signal that disables information setting. a second generating an information configurable signal;
a first switch means for switching to the state; a second switch means for generating an opening/closing signal in conjunction with the opening/closing operation of the storage lid for protecting the switches in the storage section; and an information setting for setting information. and information reading means for reading information set by the information setting means when the information setting enable signal is input, when a storage lid open signal is input from the second switch means. When the first switch means is operated and the information setting enable signal is generated, the information setting enable signal is stored and output to the information reading means, and the second switch A camera characterized in that a storage means is provided for canceling storage of the information setting enable signal when a storage lid close signal is inputted from the storage means.