JPH07225407A - Information setting device of camera - Google Patents

Abstract

PURPOSE:To quickly set photographing information in the number of steps densely arranged in a range which a photographer intends neither making a device large-sized nor causing the deterioration of operability in the information setting device of a camera. CONSTITUTION:The information setting device of the camera is provided with a number-of-steps changing means changing the photographing information displayed on an information display means 9 in accordance with the selection of an information selecting means 2 to the desired number of the steps in the range of specified luminance based on luminance information.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an improvement of a camera information setting device for setting photographing information.

[0002]

2. Description of the Related Art A conventional camera information setting device uses a dial having a built-in base on which a code value having a plurality of bits is patterned.
1/250, 1/500, aperture value is displayed using a dial or liquid crystal display element in which the numerical value for each step is engraved like f2, f2.8, f4, f5.6. By rotating the dial or pressing the button for the specified value, the previously stored information for each step is sequentially changed according to the change in the counter output, and the information is set by stopping at the value you want to select. Was going on.

The apparatus for setting information in this way is constructed so that information can be set for each stage. For a normal photographer, it is almost satisfactory that the information can be set for each stage, so that no particular problem occurs. However, some photographers, including professionals, are not satisfied with the information setting for each tier, and often request detailed settings for each 1 / 2EV or 1 / 3EV. Therefore, in addition to the dial for each stage, a dial for setting a specific number of stages is provided to deal with the situation, or a switch for changing the number of stages is provided to meet the demand.

[0004]

In the prior art as described above, since the information can be set step by step, it is currently necessary to meet the needs of some photographers including professionals. In addition to one dial, another dial had to be provided, and a switch for changing the number of steps had to be added. Therefore, an extra space is required, which is not suitable for a camera that requires compactness. In addition, when the information is changed, the number of steps becomes small in the entire range, so that quick operation cannot be performed. Therefore, there is a problem that the operation becomes very troublesome.

The present invention has been made in view of such conventional problems, and an object of the present invention is intended by a photographer without increasing the size of the apparatus and deteriorating the operability. An object of the present invention is to provide a camera information setting device capable of quickly setting shooting information with a step number subdivided in a range.

[0006]

To achieve the above object, in the present invention, information storage means for storing shooting information for shooting, display means for displaying shooting information stored in the information storage means, Information selection means for sequentially changing the display on the display means stepwise to select desired information, and information setting for setting the information selected by the information selection means and displayed on the display means as photographing information. Means and a control means for controlling based on the information set by the information setting means, a photographing information display on the information display means according to the selection of the information selecting means is changed to brightness information. On the basis of the above, the first problem solving means is to have a step number changing means for changing the number of steps to a desired number in a specific luminance range, and the step number changing means changes the step number corresponding to the change of the luminance information. This is made possible by the second means for solving the problem, and the step number changing means subdivides the step number in the luminance range where the frequency of use is high, and sets the coarse step number when the frequency of use is low and the effect is small even if changed. This is a means for solving the third problem.

[0007]

According to the present invention, in the information setting device of the camera, the photographing information display on the information display means according to the selection of the information selecting means by the step number changing means is changed to a desired number of steps in a specific luminance range based on the luminance information. Since this is done, it is possible to prevent the apparatus from becoming large and the operability from deteriorating. Further, the step number changing means is made to be able to change the step number corresponding to the change of the luminance information, and the number of steps is subdivided in a frequently used luminance range so that the frequency of use is low and the luminance is not effective even if changed. Since the coarse number of steps is set, it is possible to quickly set the shooting information with the number of steps subdivided in the range intended by the photographer.

[0008]

Embodiments of the present invention will now be described in detail with reference to the drawings. FIG. 1 is an embodiment of the present invention, and is an external view of the camera viewed from above, and FIG. 2 is a block diagram of a CPU that controls the entire camera in the embodiment. In FIG. 1, the camera body of the embodiment mainly includes a release button 1, a setting dial 2, setting buttons 3 to 7, and a finder internal LCD.
8, an external LCD 9 and a taking lens 10 are arranged.

The setting button 3 is a button for switching the exposure control mode, and while holding down the setting button 3, the setting dial 2
By rotating, the exposure control mode switches to Program, Shutter speed priority, Aperture priority, or Manual. The setting button 4 is a button for switching the drive (feed) mode, and by rotating the setting dial 2 while pressing the setting button 4, continuous shooting or one shot is switched.

The setting button 5 is a button for switching the film sensitivity, and by rotating the setting dial 2 while pressing the setting button 5, the film sensitivity is changed and the DX is switched. The setting button 6 is a button for setting the number of exposures for multiple exposure shooting, and is set and changed by rotating the setting dial 2 while pressing the setting button 6.

The setting buttons 7a and 7b are buttons for switching the photographing control mode when the exposure control mode is the program, and the setting button 7a sets the range by pressing the button at the starting point and the ending point of the photographing information to set. The button 7b is used to switch a specific step, for example, by setting 1/2 or 1/3 step. This setting button 7
By rotating the setting dial 2 while pressing a and 7b, the photographing control mode stored in advance is switched.

The viewfinder internal LCD 8 is a display device for displaying shutter speed, aperture, number of films, focusing information and the like, and is composed of a liquid crystal (LCD). External L
CD9 has shutter speed, aperture, number of films,
A display device for displaying film sensitivity and the like, which is composed of a liquid crystal (LCD). Next, the control of the CPU will be described with reference to FIG. Information about the drive mode, exposure control mode, film sensitivity, multiplex mode, and shooting control mode set by rotating the setting dial 2 while pressing the setting buttons 3 to 7 in FIG. 1 is input to the CPU.

The photometric information section measures the brightness of the object by a light receiving element such as SPD, A / D converts the result and C
Input to PU. The lens information section inputs information such as the focal length of the lens, the maximum aperture value, and the minimum aperture value, which are output from the taking lens 10, to the CPU. The AF information unit inputs information regarding focus to the CPU.

The exposure control unit controls the aperture and the travel of a shutter (not shown) according to a command from the CPU. AF
In response to a command from the CPU, the control unit drives the taking lens 10 by a motor (not shown) or the like to guide it to the in-focus position. L
The CD driver receives the display data from the CPU, and according to this display data, the LCD 8 in the finder.
Alternatively, it is displayed on the external LCD 9. FIG. 3A is a lighting diagram of all segments of the display of the external LCD 9 in one embodiment,
FIG. 3B is a viewfinder internal LCD in one embodiment.
It is a lighting figure of all the segments of the display of FIG. In FIG. 3A, the shutter speed and aperture are displayed in the A section, the exposure control mode is displayed in the B section, and the exposure correction value, the film sensitivity, the number of films, and the shooting control mode are displayed in the C section. In FIG. 3B, the D portion is AF focusing information, the E portion is the exposure control mode, and the F portion is F.
The shutter speed and aperture are shown in the section, the number of films in section G,
Displays the shooting control mode. FIG. 4A is a lighting diagram of a segment of the display of the external LCD 9 in the embodiment, FIG.
In (a), this display indicates that the shutter speed is 1 /
60, the aperture value is 2.8, the exposure control mode is the shutter priority mode, and the number of films is 28. FIG. 4B is a lighting diagram of a segment of the display of the internal LCD 9 in one embodiment. In FIG. 4B, this display shows that the shutter speed is 1/60, the aperture value is 2.8, and the exposure control mode is the shutter priority mode. , The number of films is 28.

The above is the common part with the prior art and the present invention. In the present invention, the brightness information A / D-converted by the photometric information section is calculated in the CPU, and the calculation result is output to the exposure control section for exposure control. Further, the display information is sent to the LCD driver. The sent display information is processed in the CPU, and is displayed in a mode in which the brightness is rough when the brightness is less than a predetermined brightness and fine when the brightness is higher than the predetermined brightness. When the dial 2 is rotated here, a switch (not shown) in the dial is repeatedly turned on and off. When the dial is rotated clockwise due to the input of an up / down signal to the CPU due to turning on / off, the EV value is higher by "+1" EV, and when it is rotated counterclockwise, the EV value is lower by "-1" EV. Calculates the exposure in the direction.

For example, let EV9 be the brightness at which the number of coarse steps and the number of fine steps are switched. The brightness of EV9 roughly matches the brightness at dusk, so below EV9 the strobe is the desired brightness. Therefore, it is meaningless to set a fine number of steps with a brightness lower than this. Also, if the brightness is EV9 or higher, the movement of the subject can be subtly changed by finely changing the shutter speed. Here, the number of fine steps is halved.

In FIGS. 4 (a) and 4 (b) in one embodiment, the EV9
It is a combination of 1/60, f2.8. If you rotate the dial counterclockwise, the display will change from "1/60" to "1/90".
Changes to and is displayed as shown in FIG. Conversely, when it is rotated clockwise, it changes from "1/60" to "1/30" and is displayed as shown in FIG. The operation of the above camera will be described with reference to the flowchart of FIG. Step 1: CPU when the power switch of the camera is turned on
Starts operating. Step 2: If the state of the half-press switch is detected and turned on, go to step 3 and if it is off, go to step 2 Step 3: Capture photometric information from the light receiving element to step 4 Step 4: Brightness of photometric information to CPU Sending step 5
Go to Step 5: Determine the brightness information in the CPU, and go to Step 6 for displaying fine steps if EV9 or more, or go to Step 7 for displaying coarse steps if less than EV9 Step 6: Perform fine steps display on the external or internal LCD Step Go to 8 Step 7: Display coarse step number on external and internal LCD,
Monitor the rotation of dial 2. Go to step 9 Step 8: Monitor the rotation of dial 2 for a certain period of time, go to step 10 Step 9: Monitor the rotation of dial 2 for a certain period of time, go to step 11 Step 10: Determine if the rotation of dial 2 is detected, then step Step 12: If not detected, go to Step 14: Step 11: If rotation of the dial 2 is discriminated and detected, go to Step 13. Step 12: If not detected, go to Step 12: If rotation is detected, calculate according to the number of rotations and go to Step 6. Step 13: When rotation is detected, calculation according to the number of rotations is performed, and then Step 7 is performed. Step 14: It is determined whether or not the release SW is released, and if it is released, go to Step 15. If not, go to Step 2. Step 15: Exposure control of the shutter and diaphragm is performed and then Step 16 is performed. Step 17: Film winding Step 18: End (in case of single shooting) As described above, according to the present embodiment, the brightness of the subject is detected to switch to the set number of steps every 1/2 step or every step. Is possible. In this embodiment, since the brightness information is used, the size of the device does not increase, and the compactness of the camera can be maintained. Further, since the brightness information can be written in the E2 ROM, it is possible to switch the brightness information at any brightness. Further, although the case of low brightness has been described in the above-described embodiment, similarly, a case of high brightness may be provided. In this way, for the photographer, a fine number of steps is set for effective brightness, and a coarse step is automatically set when unnecessary, resulting in a camera with good operability and usability. .

[0018]

As described above, the step number changing means changes the photographing information display on the information display means according to the selection of the information selecting means to a desired step number in a specific luminance range based on the luminance information. Therefore, the size of the device is increased,
Also, it is possible to prevent deterioration of operability. Further, the step number changing means is made to be able to change the number of steps corresponding to the change of the luminance information, and the number of steps is subdivided in the luminance range of the frequency of use so that the frequency of use is low and the luminance is rough even if the effect is small even if the change is made. Since the number of steps is set, there is also an effect that the shooting information can be quickly set in the number of steps subdivided in the range intended by the photographer.

[Brief description of drawings]

FIG. 1 is an external view of a camera as viewed from above.

FIG. 2 is a block diagram of a CPU.

FIG. 3A is a diagram illustrating full-lighting display on an external LCD. (B): It is a figure explaining the full lighting display of an internal LCD.

FIG. 4A is a diagram showing a state in which a control numerical value is displayed on an external LCD. (B): It is a figure which shows the state which is displaying the control numerical value of an internal LCD.

5A is a diagram showing an external LCD display when the dial is rotated counterclockwise from FIG. (B): It is a figure which shows an internal LCD display when a dial is rotated counterclockwise from FIG.

6A is a diagram showing an external LCD display when the dial is rotated clockwise from FIG. (B): It is a figure which shows an internal LCD display when a dial is rotated clockwise from FIG.

FIG. 7 is a flowchart illustrating an operation of the camera.

[Explanation of symbols]

 1 Release Button 2 Setting Dial 3 to 7 Setting Button 8 Internal LCD 9 External LCD 10 Photographic Lens

Claims (3)

[Claims] 1. An information storage means for storing shooting information for shooting, a display means for displaying the shooting information stored in the information storage means, and a display on the display means are changed step by step. Based on the information set by the information selecting means for selecting desired information by the user, the information setting means for setting the information selected by the information selecting means and displayed on the display means as photographing information, In a camera information setting device including control means for controlling, the number of steps for changing the shooting information display on the information display means in accordance with the selection of the information selection means to a desired number of steps in a specific brightness range based on brightness information. An information setting device for a camera having a changing unit. 2. The information setting device for a camera according to claim 1, wherein the step number changing means is capable of changing the step number corresponding to the change of the luminance information. 3. The step number changing means subdivides the number of steps in a luminance range where the frequency of use is high and sets a coarse number of steps when the frequency of use is low and the luminance is small even if the change is made. Information setting device for the camera described.