JP4377972B2 - camera - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to an exposure mode of a camera that can replace a manually set shutter speed value and aperture value with a calculated value that can obtain appropriate exposure with a simple operation.
[0002]
[Prior art]
Conventionally, in manual exposure mode in which the shutter speed and aperture value are manually set, in order to obtain appropriate exposure using the photometric sensor in the camera, there is no difference between the output of the photometric sensor in the camera and the set value. In addition, the shutter speed and aperture value were manually input while viewing the display. However, since this operation is unexpectedly troublesome, the shutter speed value and the aperture value for obtaining the proper exposure calculated based on the output of the photometric sensor can be set with one button operation. A mode of ignoring and replacing the set value has been proposed and commercialized.
[0003]
[Problems to be solved by the invention]
However, in the above conventional example, there is no room for the photographer to determine whether to replace the current set value with the calculated value after looking at the shutter speed and aperture value at which proper exposure is obtained. When the aperture value is displayed, the setting value is also changed, and the setting value set in consideration of the shooting intention is wasted. In other words, it is impossible to see the shutter speed and aperture value for obtaining proper exposure for reference.
[0004]
Further, since the member for setting the calculation value is different from the member for setting the aperture value and the shutter speed value, the operation becomes troublesome when the exposure meter in the camera is corrected in the manual exposure mode.
[0005]
  Therefore,BookIt is an object of the invention to provide a camera that can propose an unprecedented manual and automatic intermediate exposure mode.
[0006]
  Furthermore,BookAn object of the present invention is to provide a camera that improves the operability of correction for proper exposure in the manual exposure mode and enables exposure determination in accordance with a photographer's thought.
[0008]
[Means for Solving the Problems]
  In order to achieve the above object, the invention described in claim 1 is directed to a camera having a selection means for automatically selecting a shutter speed value and an aperture value from a combination determined in advance based on a photometric result. Display means capable of displaying the value, an aperture value setting member for changing the setting value of the aperture value, a shutter speed value setting member for changing the setting value of the shutter speed value, the shutter speed value selected by the selection means, and Display control means for displaying the aperture value on the display means, and the display control means displays the shutter speed value and the aperture value selected by the selection means on the display means based on the photometric result. When the aperture value setting member is operatedIsWhen the aperture value selected by the selection means is displayed as a set value on the display means, and the shutter speed value setting member is operatedIsThe shutter speed value selected by the selection means is displayed as a set value on the display means.When the aperture value setting member or the shutter speed value setting member is further operated after the aperture value or shutter speed value is displayed as the set value, the set value of the aperture value or shutter speed value is associated with the operation. Changed to up or downIt is characterized by that.
[0009]
  According to this configuration, in the manual shooting mode, the calculated value can be used as a set value for each of the aperture value and the shutter speed value according to the photographer's judgment in accordance with the shooting intention.Even after the aperture value or shutter speed value is set and displayed, the aperture value or shutter speed value can be further changed by operating the aperture value setting member or shutter speed value setting member.
[0010]
  According to a second aspect of the present invention, there is provided a display capable of displaying a shutter speed value in a camera having a calculation means for calculating a shutter speed value corresponding to an aperture value set by an aperture value setting means based on a photometric result. Means, a shutter speed value setting member for changing the set value of the shutter speed value, and a display control means for displaying the shutter speed value calculated by the calculation means on the display means, wherein the display control means comprises photometry Based on the result, the shutter speed value setting member is operated when the calculation means displays the calculated shutter speed value corresponding to the aperture value set by the aperture value setting means on the display means. CaseIsThe shutter speed value displayed on the display means is displayed as a set value.When the shutter speed value setting member is further operated after the shutter speed value is displayed as the set value, the set value of the shutter speed value is changed so as to increase or decrease in accordance with the operation.It is characterized by that.
[0011]
  According to this configuration, the set value can be changed continuously by operating the same shutter speed value setting member simultaneously with the setting.Even after the shutter speed value is set and displayed, the shutter speed value can be further changed by operating the shutter speed value setting member.
[0012]
  According to a third aspect of the present invention, there is provided a display means capable of displaying an aperture value in a camera having a calculation means for calculating an aperture value corresponding to a shutter speed value set by a shutter speed setting means based on a photometric result. And an aperture value setting member for changing the set value of the aperture value, and display control means for displaying the aperture value calculated by the calculation means on the display means, the display control means based on the photometric result When the aperture value setting member is operated while the calculation means displays the calculated aperture value corresponding to the shutter speed value set by the shutter speed setting means on the display meansIsDisplayed aperture value as set value on the display meansWhen the aperture value setting member is further operated after the aperture value is displayed as the set value, the aperture value setting value is changed so as to increase or decrease in accordance with the operation.It is characterized by that.
[0013]
  According to this configuration, the set value can be changed continuously by operating the same aperture value setting member simultaneously with the setting.Even after the aperture value is set and displayed, the aperture value can be further changed by operating the aperture value setting member.
[0017]
  Claim 4The invention described in (1) includes a display switching member that switches the display of the display unit to a display based on an operation of the electronic dial, and the aperture value setting member and the shutter speed value setting member are configured by an electronic dial. When the display switching member is in an operating state, the electronic dial can change a shutter speed value or an aperture value.
  According to this configuration, it is possible to expand the functions of the camera and improve the operability with a low-cost configuration that uses conventional camera parts as they are.
  Claims5The shutter speed value setting member includes an electronic dial, and further includes a display switching member that switches the display of the display unit to a display based on the operation of the electronic dial, and the display switching member is in an operation state. The shutter speed value can be changed by the electronic dial.
  According to this configuration, it is possible to expand the functions of the camera and improve the operability with a low-cost configuration that uses conventional camera parts as they are.
  Claims6The aperture value setting member is configured with an electronic dial, and further includes a display switching member that switches the display of the display unit to a display based on an operation of the electronic dial, and the display switching member is in an operation state. In some cases, the aperture value can be changed by the electronic dial.
  According to this configuration, it is possible to expand the functions of the camera and improve the operability with a low-cost configuration that uses conventional camera parts as they are.
[0018]
DETAILED DESCRIPTION OF THE INVENTION
(First embodiment)
Hereinafter, a first embodiment of the present invention will be described with reference to the drawings.
[0019]
FIG. 1 is a flowchart of the operation of the camera according to the first embodiment of the present invention.
[0020]
FIG. 2 is a block diagram of the camera shown in FIG.
[0021]
FIG. 3 is a flowchart of the basic photographing operation of the camera shown in FIG.
[0022]
In FIG. 2, reference numeral 1 denotes a microcomputer (hereinafter abbreviated as a microcomputer) for controlling the movement of each part of the camera. Reference numeral 2 denotes a lens control circuit that drives and controls the focus adjustment motor and the diaphragm blade control motor of the photographing lens 13. The lens control circuit 2 performs serial communication via the DBUS while receiving the LCOM signal from the microcomputer 1. The motor drive information is received by serial communication, and the motor is driven and controlled by the information. At the same time, various information (focal length, etc.) of the lens is sent to the microcomputer 1 by serial communication.
[0023]
A liquid crystal display circuit 3 is a liquid crystal display circuit that drives a liquid crystal display for informing the photographer of the remaining battery level of the camera, the number of shots, the TV value, the AV value, the exposure correction amount, and the like. The liquid crystal display circuit 3 performs serial communication via the DBUS while receiving the DPCOM signal from the microcomputer 1. Display data is received by serial communication, and the liquid crystal displays 11 and 12 are driven according to the data.
[0024]
Reference numeral 4 denotes a switch sense circuit, which is a switch for the photographer to set each photographing condition and a switch state indicating the camera state and sends the switch state to the microcomputer 1. Switch data is sent to the microcomputer 1 by communication. Also, the dial value is counted up / down by the input value of the electronic dial 10, and the count value is sent to the microcomputer 1 by serial communication via the DBUS while receiving the SWCOM signal.
[0025]
A strobe light emission dimming control circuit 5 controls a light emission stop function by strobe light emission and TTL dimming. While receiving the STCOM signal, the strobe light emission dimming control circuit 5 performs serial communication with the microcomputer 1 via the DBUS, receives data related to strobe control, and performs various controls. This circuit also functions as an interface when an external strobe is attached to the camera. Therefore, when an external strobe is attached, communication with the external strobe is performed, and information (whether there is auxiliary light, etc.) is sent to the microcomputer 1. On the contrary, the control signal from the microcomputer 1 is transmitted to the external strobe 14.
[0026]
A focus detection circuit 6 is a line sensor for performing AF by an existing phase difference detection method, and a focus detection circuit that is a circuit unit for storing and reading the AF, and is controlled by the microcomputer 1. The microcomputer 1 measures the distance using an existing algorithm based on the A / D value of the sensor output, and communicates the calculated lens driving amount to the lens control circuit 2 so as to focus after calculating the lens driving amount. Drive the lens to focus. Reference numeral 7 denotes a photometric circuit, which measures the subject and sends a photometric output to the microcomputer 1 under the control of the microcomputer 1. The microcomputer 1 performs A / D conversion on the sent photometric output and uses it for calculating exposure conditions (aperture, shutter speed).
[0027]
Reference numeral 8 denotes a shutter control circuit that controls travel of the shutter front curtain and rear curtain (not shown) according to the control signal of the microcomputer 1.
[0028]
A feeding motor / charge motor control circuit 9 feeds (winds up or rewinds) the film in accordance with a control signal from the microcomputer 1. The motor control circuit also controls a mirror up / charge (mirror down) motor. SW1 is a button for starting the operation of the camera. When the microcomputer 1 recognizes that SW1 is turned on, photometry, distance measurement, and display are started. SW2 is linked with the release button of the camera, and when the microcomputer 1 recognizes that SW2 is turned on, the exposure operation is started.
[0029]
The X contact is turned on at the timing when the front curtain of the shutter is completed, and serves to notify the flash emission timing to the flash emission dimming control circuit 5. SW3 is a switch for switching the camera mode (TV priority, AV priority, manual, program, etc.). 10a and 10b are a main electronic dial and a sub electronic dial for changing the TV value, AV value, correction amount, mode, and the like. For example, when the main electronic dial 10a is rotated while pressing the mode switching button of SW3, the TV priority → AV priority → manual → program → TV priority → AV priority → manual → program is changed to the mode intended by the photographer. Can be set.
[0030]
Further, when the main electronic dial 10a is rotated in the reverse direction, the mode is changed as follows: program → manual → AV priority → TV priority → program →. When the TV priority mode is set by the mode change switch 3 and the main electronic dial, the TV value desired by the photographer can be set by rotating the main electronic dial 10a.
[0031]
When AV priority is set as a mode by the mode change switch 3 and the main electronic dial, the photographer can set a desired AV value by rotating the main electronic dial 10a. When the program mode is set by the mode change switch 3 and the main electronic dial, the program shift for changing the combination of the TV value and the AV value can be performed by rotating the main electronic dial.
[0032]
  Further, when the manual is set as a mode by the mode change switch 3 and the main electronic dial, the TV value can be changed by the main electronic dial 10a.,The AV value can be changed by the sub electronic dial 10b. When a mode other than manual (AV priority, TV priority, program) is set by the mode change switch 3 and the main electronic dial, the exposure correction can be changed by the sub electronic dial 10b.
[0033]
SW4 is an AF mode setting button. SW5 is a photometry mode setting button. SW6 is a feed mode setting button. The main SW is a lock switch that prohibits the operation of the camera. SW7 realizes the contents of the present invention by means of a display switching member for setting the shutter speed and aperture value and the calculated value.
[0034]
Reference numeral 11 denotes an external display device that is driven from the liquid crystal display circuit 3. Reference numeral 12 denotes a color liquid crystal display device in the finder, which is driven by the liquid crystal display circuit 3. An interchangeable lens 13 is controlled through the lens control circuit 2. Reference numeral 14 denotes an external strobe which is controlled through the strobe light emission dimming control circuit 5. This strobe has a power supply that is separate from the camera body.
[0035]
Next, a general photographing operation will be described using the flowchart of FIG.
[0036]
Initially, the camera is turned on due to factors such as the camera SW being pressed, and the process proceeds to the next (S300). Based on the information of the switch circuit 4, the mode is switched and the set value is switched. If there is a change, the liquid crystal display circuit 3 is communicated to correct the display data (S301).
[0037]
It is determined whether SW1 is pressed or not, and if it is pressed, the process proceeds to S306, and if not, the process proceeds to S304 (S302). It is determined whether or not the power is turned off (S303). If not turned off, the process returns to the SW information input in S301. In other words, when the camera power is turned on for some reason, the power is turned on for a predetermined time to check the SW state and switch the display.
[0038]
Display of unnecessary parts in the camera finder or outside is turned off by the liquid crystal display circuit 3 and the power is turned off (S304). End (S305).
[0039]
The photometry circuit 7 measures the subject, and the microcomputer 1 performs A / D conversion on the photometry output to calculate the exposure conditions (aperture and shutter speed) (S306). In the first embodiment, when the manual exposure mode is set, the program AE calculation is performed, the aperture priority AE calculation is performed in the second embodiment, and the shutter speed priority AE is performed in the third embodiment. Will be performed.
[0040]
The focus detection circuit 6 is used to store and read the line sensor, and based on the A / D value of the sensor output, the distance is measured using an existing algorithm, and the lens driving amount is calculated, and then the focus is adjusted. The lens driving amount obtained by calculation is communicated to the lens control circuit 2, and the lens is driven and focused (S307).
[0041]
The AV value / TV value calculated in S306 is displayed on the in-finder liquid crystal 12 and the external display 11 by the liquid crystal display circuit 3. If the distance measurement result in S307 is in focus, focus display is also performed (S308).
[0042]
Next, it is determined whether or not the camera is in a state that permits release (S309). For example, when the AF mode is “one-shot mode”, if the distance measurement result in S307 is in focus, release is permitted, and the process proceeds to S310 to check SW2, and if not in focus, the SW check is performed. Return to S301. When SW1 is ON, photometry / ranging / display is performed again.
[0043]
It is determined whether or not SW2 is pressed (S310), and it is determined whether or not to proceed to a release operation after S311. If SW2 is ON, the process proceeds to S311 to perform the release operation, and if SW2 is OFF, the process returns to S301 to check the SW. When SW1 is ON, photometry / ranging / display is performed again.
[0044]
Start the release operation. The feed motor / charge motor control circuit 9 raises the mirror, and the aperture amount determined in S306 is communicated to the lens 13 by the lens control circuit 2, and the aperture operation is performed so that the set exposure amount is obtained (S311). ).
[0045]
Using the shutter control circuit 8, travel control of the shutter front curtain and rear curtain (not shown) is performed so as to obtain the TV amount determined in S306 (S312). At the same time as the mirror is lowered by the feed motor / charge motor control circuit 9, the shutter is charged, and the lens control circuit 2 communicates to the lens 13 in S306, and the aperture that has been stopped is returned to the open state (S313). Finally, the film is wound up according to the control signal from the microcomputer 1 using the feeding motor / charge motor control circuit 9 (S314). The above is a general basic photographing operation.
[0046]
Next, the operation of the present invention will be described with reference to the flowchart of FIG.
[0047]
Starting (S100), the shutter speed value and aperture value set here are displayed on the display members 11 and 12 (S101). Next, it is determined whether or not SW7 is pressed. If it is pressed, the process proceeds to S103, and if it is not pressed, the process proceeds to S114 (S102).
[0048]
Based on the output measured by the photometric sensor 7, the shutter speed value and aperture value of the program AE calculated in S306 are displayed on the display members 11 and 12 (S103). It is determined whether or not the electronic dial 10a for setting the shutter speed value has been operated. If the electronic dial 10a has been operated, the process proceeds to S105 for setting the shutter speed. If not, the electronic dial 10b for setting the aperture value is checked. Therefore, the process proceeds to S108 (S104).
[0049]
Next, it is determined whether or not the operation of the electronic dial 10a is the first click when SW7 is pressed. If the first click, the process proceeds to S106 to set the shutter speed AE calculation value to the set value. If not, the process proceeds to S107 to increase or decrease the set shutter speed value (S105).
[0050]
Based on the output measured by the photometric sensor 7, the calculated shutter speed value of the program AE calculated in S306 is set to the shutter speed setting value (S106).
[0051]
The shutter speed setting value is increased / decreased according to the direction of the electronic dial 10a and the number of clicks (S107). Next, it is determined whether or not the aperture value setting electronic dial 10b has been operated. If it has been operated, the process proceeds to S112 (S108).
[0052]
It is determined whether or not the operation of the electronic dial 10b is the first click since the SW7 is started. If the first click, the process proceeds to S110 in order to set the aperture value AE calculation value to the set value. The process proceeds to S111 to increase / decrease the aperture value (S109).
[0053]
Based on the output measured by the photometric sensor 7, the calculated aperture value of the program AE calculated in S306 is set to the aperture value setting value (S110). The aperture setting value is increased / decreased according to the direction of the electronic dial 10b and the number of clicks (S111). It is determined whether or not SW7 has been released. If it is determined that SW7 has been released, the process proceeds to S114, and if it has not been released, the process returns to S104 (S112). Subsequently, the set values of the shutter speed value and the aperture value are displayed on the display members 11 and 12 (S113). End (S114).
[0054]
As described above, according to the present embodiment, in the manual exposure mode, the calculated value can be used as the set value for the aperture value and the shutter speed value individually according to the photographer's judgment in accordance with the photographing intention. This allows us to propose an unprecedented manual and automatic intermediate exposure mode.
[0055]
(Second Embodiment)
Next, a second embodiment of the present invention will be described with reference to the drawings.
[0056]
FIG. 4 is a flowchart of the operation of the camera according to the second embodiment of the present invention.
[0057]
Also in the second embodiment, the block diagram of FIG. 2 and the basic shooting operation of FIG. 3 are common, and therefore, the description of the camera configuration and the basic operation shown in FIG. In this embodiment, an operation using the aperture priority AE to calculate a shutter speed value and an aperture value indicating appropriate exposure for manual exposure will be described. FIG. 4 also shows the subroutine of S301 in FIG.
[0058]
After starting (S400), the set shutter speed value and aperture value are displayed on the display members 11 and 12 (S401). It is determined whether or not SW7 has been pressed. If it has been pressed, the process proceeds to S403, and if it has not been pressed, the process proceeds to S412 (S402). Based on the output measured by the photometric sensor 7, the shutter speed value of the aperture priority AE calculation result calculated in S306 and the aperture value of the set value are displayed on the display members 11 and 12 (S403).
[0059]
It is determined whether or not the shutter speed value setting electronic dial 10a has been operated. If it has been operated, the process proceeds to S405 to set the shutter speed. If it has not been operated, the aperture value setting electronic dial 10b is checked. Therefore, the process proceeds to S408 (S404).
[0060]
It is determined whether the operation of the electronic dial 10a is the first click when SW7 is pressed. If the first click, the process proceeds to S406 in order to set the AE calculation value of the shutter speed to the set value. In this case, the process proceeds to S407 to increase / decrease the set shutter speed value (S405). Subsequently, based on the output measured by the photometric sensor 7, it is set to the set value of the calculated shutter speed of the aperture priority AE calculated in S306 (S406).
[0061]
The shutter speed setting value is increased / decreased according to the direction of the electronic dial 10a and the number of clicks (S407). It is determined whether or not the aperture value setting electronic dial 10b has been operated. If operated, the process proceeds to S409 for setting the aperture value, and if not operated, the process proceeds to 410 (S408). The aperture value setting is increased / decreased according to the direction of the electronic dial 10b and the number of clicks (S409). It is determined whether or not SW7 has been released. If it is determined that SW7 has been released, the process proceeds to S411, and if it has not been released, the process returns to S404 (S410). The set values of the shutter speed value and the aperture value are displayed on the display members 11 and 12 (S411). End (S412).
[0062]
As described above, according to the second embodiment, the shutter speed is calculated and displayed by the aperture priority calculation by operating the operation member based on the aperture value of the set value, and the calculation is performed by operating the aperture setting member. By simply setting the value to the set value, it becomes possible to continue changing the set value with the same operation member simultaneously with the setting.
[0063]
(Third embodiment)
Next, a third embodiment of the present invention will be described with reference to the drawings.
[0064]
FIG. 5 is a flowchart of the operation of the camera according to the third embodiment of the present invention.
[0065]
In the third embodiment as well, the configuration of FIG. 2 and the basic photographing operation of FIG. 3 are the same, so redundant description will be omitted, and the shutter speed value and aperture value indicating proper exposure for manual exposure will be omitted. A process using the shutter speed priority AE for calculating the value will be described.
[0066]
After starting (S500), the set speed value and aperture value are displayed on the display members 11 and 12 (S501). It is determined whether or not SW7 is pressed. If it is pressed, the process proceeds to S503, and if it is not pressed, the process proceeds to S512 (S502). Based on the output measured by the photometric sensor 7, the aperture value of the shutter speed priority AE calculation result calculated in S306 and the shutter speed value of the set value are displayed on the display members 11 and 12 (S503).
[0067]
It is determined whether or not the aperture value setting electronic dial 10b has been operated. If it has been operated, the process proceeds to S505 for setting the aperture value, and if it has not been operated, the shutter speed value setting electronic dial 10a is operated. The process proceeds to S508 for checking (S504).
[0068]
It is determined whether or not the operation of the electronic dial 10b is the first click when SW7 is pressed. If the first click, the process proceeds to S506 to set the AE calculation value of the aperture value to the set value. In this case, the process proceeds to S507 to increase or decrease the set aperture value (S505).
[0069]
Based on the output measured by the photometric sensor 7, the calculated aperture value of the shutter speed priority AE calculated in S306 is set to the set value of the aperture value (S506). The aperture value set value is increased / decreased according to the direction of the electronic dial 10b and the number of clicks (S507). It is determined whether or not the shutter speed value setting electronic dial 10a has been operated. If operated, the process proceeds to S509 for setting the shutter speed value, and if not operated, the process proceeds to S510 (S508).
[0070]
The shutter speed setting value is increased / decreased according to the direction of the electronic dial 10a and the number of clicks (S509). It is determined whether SW7 has been released. If it is determined that SW7 has been released, the process proceeds to S511, and if it has not been released, the process returns to S504 (S510). The set values of the shutter speed value and the aperture value are displayed on the display members 11 and 12 (S511). End (S512).
[0071]
As described above, according to the third embodiment, based on the shutter speed value of the set value, the aperture value is calculated and displayed by calculating the shutter speed by operating the operation member, and the shutter speed setting member operates to display the aperture value. By simply setting the calculated value as the set value, the set value can be changed with the same operation member at the same time as the setting.
[0072]
(Fourth embodiment)
Next, a fourth embodiment of the present invention will be described with reference to the drawings.
[0073]
FIG. 6 is a flowchart of the operation of the camera according to the fourth embodiment of the present invention.
[0074]
Similarly, in the fourth embodiment, since the configuration of FIG. 2 and the basic operation of FIG. 3 are common, redundant description will be omitted, and the operation outside the interlocking range in the aperture priority AE and shutter speed priority AE will be described. explain. Although an example of aperture priority is described in FIG. 6, the same applies to shutter speed priority AE.
[0075]
After starting (S600), first, the aperture priority calculated value shutter speed value and the set aperture value for the set aperture value calculated in S306 are displayed on the display members 11 and 12, respectively. When the calculated shutter speed value is out of the interlocking range, blinking display is performed. In addition, the shutter speed value is displayed instead of the shutter speed value display, or a shutter speed for obtaining an assumed appropriate exposure that cannot be set. A value outside the interlocking range may be warned by alternately displaying the value and the set maximum / minimum shutter speed value (S601).
[0076]
As a result of the aperture priority AE calculated in S306, based on the determination as to whether the shutter speed value is outside the interlocking range, the process proceeds to S610 if it is within the interlocking range, and to S603 if it is outside the interlocking range (S602). . It is determined whether or not SW7 has been pressed. If it has been pressed, the process proceeds to S604, and if it has not been pressed, the process proceeds to S610 (S603). Based on the output measured by the photometric sensor 7, the aperture value is shifted until it falls within the interlocking range, and aperture priority AE calculation is performed on the aperture value in the same manner as in S306, and the shifted aperture value and the resulting shutter speed value are calculated. The aperture value of the set value is displayed on the display members 11 and 12 (S604). It is determined whether or not the aperture value setting electronic dial 10b has been operated. If operated, the process proceeds to S606 to set an aperture value, and if not operated, the process returns to S603 (S605).
[0077]
It is determined whether or not the operation of the electronic dial 10b is the first click when SW7 is pressed. If the first click, the process proceeds to S607 in order to set the shifted aperture value to the set value. Then, the process proceeds to S608 in order to increase / decrease the set aperture value (S606). The aperture value shifted in S604 is set to the aperture value setting value so that the shutter speed is within the limit interlocking range (S607). The aperture setting value is increased / decreased according to the direction of the electronic dial 10b and the number of clicks (S608). The set value of the aperture value and the calculated value of the shutter speed are displayed on the display members 11 and 12 (S609). End (S610).
[0078]
According to the fourth embodiment as described above, whether to use the shifted value when out of the interlocking range can be easily input with the operation member and the aperture or the shutter speed setting member. .
[0079]
(Correspondence between embodiment and claims)
The photometric means described in the claims corresponds to the photometric circuit 7 in the embodiment, and the shutter speed display means and the aperture value display means correspond to the external and internal display members 11 and 12, respectively, and the shutter speed setting means and aperture value setting. The means corresponds to the main electronic dial 10a and the sub electronic dial 10b. Similarly, the display switching operation member corresponds to SW7.
[0080]
The above is the correspondence between each configuration of the present invention and the embodiment. However, the camera of the present invention is not limited to these configurations, and the function achieved by the above configuration and an equivalent function can be achieved. All optical instruments are comprehensive.
[0081]
【The invention's effect】
As described above, according to the present invention, in the manual exposure mode, the calculated value can be used as a set value separately for the aperture value and the shutter speed value according to the photographer's judgment in accordance with the shooting intention. Unprecedented manual and automatic intermediate exposure mode operation is possible, and the function of the camera is expanded.
[0082]
In addition, since it is possible to continue changing the set value with the same operation member at the same time as setting, the operability of correction for proper exposure in manual exposure mode has been improved, and the barrier between manual exposure and aperture priority and shutter speed priority has been eliminated. This makes it possible to determine the exposure according to the photographer's thinking.
[0084]
Furthermore, these magnification functions can be achieved at low cost by an efficient configuration that uses the camera components as they are.
[Brief description of the drawings]
FIG. 1 is a flowchart of the operation of a camera according to a first embodiment of the present invention.
FIG. 2 is a block diagram of the camera shown in FIG.
FIG. 3 is a flowchart of a basic photographing operation of the camera shown in FIG.
FIG. 4 is a flowchart of the operation of the camera according to the second embodiment of the present invention.
FIG. 5 is a flowchart of the operation of a camera according to a third embodiment of the present invention.
FIG. 6 is a flowchart of the operation of a camera according to a fourth embodiment of the present invention.
[Explanation of symbols]
1 Microcomputer
2 Lens control circuit
3 Liquid crystal display circuit
4 Switch sense circuit
5 Strobe light emission / dimming control circuit
6 Focus detection circuit
7 Photometry circuit
8 Shutter control circuit
9 Motor control circuit
10a Main electronic dial
10b Sub-electronic dial
11 External display member
12 Internal display members
13 Interchangeable lens
14 External strobe

Claims (6)

In a camera having a selection means for automatically selecting a shutter speed value and an aperture value from a predetermined combination based on a photometric result,
Display means capable of displaying a shutter speed value and an aperture value;
An aperture value setting member for changing the aperture value setting value;
A shutter speed value setting member for changing the setting value of the shutter speed value;
Display control means for displaying the shutter speed value and aperture value selected by the selection means on the display means,
The display control means displays the shutter speed value and the aperture value selected by the selection means based on the photometric result on the display means, and the selection means is operated when the aperture value setting member is operated. the display on the display unit, if the shutter speed value setting member is operated to display the set value of the shutter speed value selected by the selecting unit on the display means the aperture but selected as a set value, the aperture value Alternatively, if the aperture value setting member or the shutter speed value setting member is further operated after the shutter speed value is displayed as the set value, the set value of the aperture value or the shutter speed value is increased or decreased in accordance with the operation. The camera is characterized by being changed as follows. In a camera having a calculation means for calculating a shutter speed value corresponding to the aperture value set by the aperture value setting means based on the photometric result,
Display means capable of displaying a shutter speed value;
A shutter speed value setting member for changing the setting value of the shutter speed value;
Display control means for displaying on the display means the shutter speed value calculated by the calculation means,
The display control unit is configured to display the shutter speed when the calculation unit displays a calculated shutter speed value corresponding to the aperture value set by the aperture value setting unit on the display unit based on a photometric result. If the value set member has been operated to display the shutter speed value that is displayed on the display means as a set value, after being displayed the shutter speed value as the set value, which is operated further the shutter speed value setting member In this case , the camera is changed so that the set value of the shutter speed value is increased or decreased in accordance with the operation. In a camera having a calculation means for calculating an aperture value corresponding to the shutter speed value set by the shutter speed setting means based on the photometric result,
Display means capable of displaying the aperture value;
An aperture value setting member for changing the aperture value setting value;
Display control means for displaying the aperture value calculated by the calculation means on the display means,
The display control unit is configured to display the aperture value when the calculation unit displays a calculated aperture value corresponding to the shutter speed value set by the shutter speed setting unit on the display unit based on a photometric result. When the setting member is operated, the displayed aperture value is displayed as a set value on the display means . After the aperture value is displayed as the set value, the operation is performed when the aperture value setting member is further operated. A camera in which the set value of the aperture value is changed so as to increase or decrease with the change . The aperture value setting member and the shutter speed value setting member are configured with an electronic dial, and further includes a display switching member that switches the display of the display unit to a display based on an operation of the electronic dial.
2. The camera according to claim 1, wherein when the display switching member is in an operating state, a shutter speed value or an aperture value can be changed by the electronic dial. The shutter speed value setting member includes an electronic dial, and includes a display switching member that switches the display of the display unit to display based on the operation of the electronic dial.
The camera according to claim 2 , wherein when the display switching member is in an operating state, a shutter speed value can be changed by the electronic dial. The aperture value setting member includes an electronic dial, and includes a display switching member that switches the display of the display unit to display based on the operation of the electronic dial.
The camera according to claim 3 , wherein the aperture value can be changed by the electronic dial when the display switching member is in an operating state.

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