JP2004072189A - Digital still camera - Google Patents

Abstract

A digital still camera capable of finely correcting parallax without increasing the number of parts is provided.
First, when a first release is turned on as a first step (YES route of S1), a deviation between a finder observation region 2 and an output image region 3 by a photographing optical system, that is, an amount of parallax reaches a subject. It depends on the distance. Therefore, first, the shooting distance to the subject is calculated from the output of the automatic focusing device (S2), and then the parallax amount is calculated based on the calculation result (S3). Next, based on the amount of parallax, an area to be taken out as an output image is selected so as to overlap the finder observation area 2 or to cover the finder observation area 2 (S4). If the first release is ON from this state (YES route in S5) and the second release is ON (YES route in S6), the selected image area is output as an output image (S7).
[Selection diagram] FIG.

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a digital still camera, and more particularly, to parallax correction of a digital still camera.
[0002]
[Prior art]
2. Description of the Related Art In recent years, with the development of personal computers (PCs), it has become common to import images captured by a digital still camera into a PC for image processing. Many digital still cameras have a photographic optical system that uses an image area captured by an image sensor such as a CCD as an output image area and a finder optical system that uses a field of view that can be viewed from a finder. When the subject viewed with the camera is photographed, captured on a PC, and reproduced, there is a case where the photographed image is shifted from the photographing range in the viewfinder. This shift amount is called a parallax amount, and it is known that this amount differs depending on the distance to the subject. Conventionally, methods of correcting this parallax include a method of moving a field frame in a viewfinder optical system in a direction perpendicular to an optical axis according to a shooting distance, and a method of parallax correction according to a shooting range at a close distance in advance. A method of displaying a mark on a field frame in a finder optical system and the like have been implemented.
[0003]
[Problems to be solved by the invention]
However, in the method of moving the field frame in the finder optical system in a direction perpendicular to the optical axis according to the shooting distance according to the conventional method, means for moving the field frame is required, and the number of parts increases and the cost increases. . Further, in a method of displaying a parallax correction mark corresponding to a shooting range at a close distance in advance on a field frame in a viewfinder optical system, fine parallax correction cannot be performed according to a shooting distance.
An object of the present invention is to provide a digital still camera capable of finely correcting parallax without increasing the number of components in view of the above problem.
[0004]
[Means for Solving the Problems]
In order to solve the problem, the present invention is directed to a photographic optical system that uses a part of an image area captured by an image sensor as an output image area and a finder that uses a field of view visible from the finder as an imaging area. In a digital still camera including an optical system and an automatic focusing device that automatically adjusts a focal length to a subject, a photographing distance calculating unit that calculates a distance to the subject based on an output from the automatic focusing device. A parallax amount calculating means for calculating a parallax amount which is a deviation between a finder observation area from the finder optical system and an output image area by the photographing optical system; and a parallax calculated by the parallax amount calculating means. Output image range calculation means for calculating the range of the output image region based on the amount.
The digital still camera photoelectrically converts an optical image incident on an image pickup device such as a CCD from a lens and outputs the image as an image. At that time, the photographer looks at the subject through the viewfinder and recognizes that the subject in the field of view has been photographed. However, in practice, a gap occurs between the area of the subject viewed through the finder and the image captured by the image sensor due to the distance of the subject, and when reproduced on a PC or the like after shooting, the subject is cut off or desired. May differ from image. It is also known that the shift amount (parallax amount) varies depending on the distance to the subject. In order to solve the parallax, the present invention includes a photographing distance calculating means for calculating a distance to a subject, and a parallax amount calculating means for calculating a parallax amount based on the result. The output image range is determined based on the calculation result of the calculation means.
According to this invention, the distance to the subject is calculated, and the parallax amount is calculated based on the distance to correct the image deviation, so that the area of the subject viewed through the viewfinder matches the actual output image. Can be done.
A second aspect of the present invention is characterized in that the parallax amount calculating means calculates the parallax amount based on the distance to the subject calculated by the photographing distance calculating means.
As described above, the parallax amount varies depending on the distance to the subject. That is, the parallax amount increases as the distance to the subject increases. Therefore, the distance to the subject is an important factor in correcting parallax.
According to this invention, since the distance to the subject is measured by the photographing distance calculating means in order to calculate the parallax amount, it is possible to calculate an accurate parallax amount according to the distance.
[0005]
According to a third aspect of the present invention, there is provided a photographing optical system in which a part of an image region picked up by an image sensor is set as an output image region, a finder optical system in which a field of view that can be seen from a finder is set as a shooting region, And a focusing angle calculating means for calculating a shooting angle of view of a zoom lens for changing a shooting angle of view to a shooting lens, and an output from the automatic focusing apparatus. Photographing distance calculating means for calculating a distance to the subject based on the distance and a parallax amount calculating for calculating a parallax amount which is a deviation between a finder observation area from the finder optical system and an output image area by the photographic optical system. Means for calculating a range of the output image area based on the parallax amount calculated by the parallax amount calculation means. Characterized in that further comprising a means.
In the second aspect, the parallax amount is calculated according to the distance to the subject. However, when a digital still camera is equipped with a zoom lens, the parallax amount is determined not only by the distance to the subject but also by the shooting. It also changes depending on the angle of view of the lens. In view of this, the present invention further includes a photographing angle-of-view calculating means for calculating the photographing angle of view, and calculates the parallax amount from two pieces of information of the distance to the subject and the angle of view.
According to this invention, even when the zoom lens is mounted, the parallax amount is calculated from the distance information and the angle-of-view information, so that the parallax of the digital still camera equipped with the zoom lens can be accurately corrected.
Preferably, the parallax amount calculating means is configured to calculate the parallax amount based on a shooting angle of view of the zoom lens calculated by the shooting angle of view calculating means and a distance to the subject calculated by the shooting distance calculating means. The parallax amount is calculated.
The parallax amount calculating means must naturally recognize that the zoom lens is mounted by some method. Thereby, it is determined whether the parallax amount may be calculated only with the distance information or whether the calculation must be performed with the angle of view information added.
According to the invention, since the parallax amount calculating means calculates from both the distance information and the angle of view information, the parallax can be accurately corrected even in the shooting by zooming.
[0006]
According to a fifth aspect of the present invention, the output image range calculating means overlaps a finder observation area from the finder optical system based on the parallax amount calculated by the parallax amount calculating means. Or the output image area is moved so as to cover the entire viewfinder observation area.
The output image area is substantially at the center of the area imaged by the image sensor. The area observed by the viewfinder varies depending on the distance, but is shifted in one direction with respect to the output image area. Therefore, the amount of the shift is calculated by the parallax calculating means to determine how much to move the output image area so as to overlap the finder observation area or to cover all the areas.
According to this invention, the output image area is moved so as to overlap or cover the finder observation area based on the calculation result of the parallax calculation means, so that the entire finder observation area is output as the output image area. be able to.
According to a sixth aspect of the present invention, as a result of calculating the output image range by the output image range calculating unit based on the parallax amount calculated by the parallax amount calculating unit, the shooting range of the shooting optical system is changed from the viewfinder optical system. When it becomes impossible to cover the entire viewfinder observation area, a warning is displayed to the effect that correction by the output image range calculation means is impossible.
If the distance to the subject is within a predetermined range, parallax correction is possible, but if the distance to the subject exceeds that range, the finder observation area is outside the entire area captured by the image sensor. there is a possibility. In this case, there is no point in moving the output image area. In such a case, it is important to warn the photographer that correction is impossible.
According to this invention, when the finder observation area exceeds the predetermined range, the fact that parallax correction cannot be performed is warned, so that the photographer can be warned that useless shooting is performed.
The output image range is calculated by the output image range calculation unit based on the parallax amount calculated by the parallax amount calculation unit. As a result, the shooting range of the shooting optical system is changed from the viewfinder optical system. When it becomes impossible to cover the entire viewfinder observation area, a warning is displayed to the effect that correction by the output image range calculation means is not possible, and photographing is disabled.
In the sixth aspect, when the finder observation area exceeds a predetermined range, a warning is given that parallax correction is impossible. However, there is a possibility that a photographer may perform photographing without noticing that. Therefore, in such a case, the present invention forcibly disables shooting.
According to this invention, when the finder observation area exceeds a predetermined range, a warning that parallax correction is impossible is given, and shooting is disabled, so that useless shooting can be reduced as much as possible. .
[0007]
According to another aspect of the present invention, as a result of calculating the output image range by the output image range calculating means based on the parallax amount calculated by the parallax amount calculating means, the shooting range of the shooting optical system is changed from the viewfinder optical system. When it becomes impossible to cover the entire viewfinder observation area, a warning is displayed indicating that the correction by the output image range calculation unit is impossible, and it is possible to select whether or not shooting is disabled. It is characterized by doing.
Depending on the shooting situation, it may be necessary to give priority to shooting even if the composition deviates from the intended one. Therefore, it is a service for the photographer to enable the photographer to select in advance whether to enable or disable the function that disables photographing according to the photographing situation.
According to this invention, the photographer can select in advance whether to enable or disable the function that disables photographing, so that the photographer can photograph a scene intended by himself.
According to a ninth aspect of the present invention, in the digital still camera further including a TTL finder for displaying an image obtained from the finder optical system and the photographing optical system on a monitor, the operation state of the TTL finder is changed. The parallax correction described in item 1 can be switched.
While the TTL (Through the Recording Lens) finder is operating, the image of the finder basically matches the finder optical system and the photographing optical system. Therefore, while the TTL finder is operating, the output image range can be determined by monitoring the TTL finder. However, when the TTL finder is not operating, the TTL finder needs to be corrected by the parallax correction unit.
According to this invention, whether or not to execute parallax correction is determined based on the operation state of the TTL finder, so that unnecessary operations can be reduced and efficient imaging can be performed.
[0008]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, the present invention will be described in detail using embodiments shown in the drawings. However, the components, types, combinations, shapes, relative arrangements, and the like described in this embodiment are not merely intended to limit the scope of the present invention but are merely illustrative examples unless otherwise specified. .
FIG. 1 is a diagram illustrating a relationship between an observation range by a finder optical system and a shooting range by a shooting optical system. The area photographed by the imaging device is the entire imaging device region 1 and includes an output image region 3 smaller than the entire imaging device whole region 1, and the image of this region is the image region where the image is actually output. The area where the photographer looks into the subject and enters the field of view of the finder is the finder observation area 2. This area may deviate from the output image area 3 depending on the distance of the subject. The figure illustrates this situation. The photographing range of the photographing optical system covers the entire region of the image sensor, but only the output image region 3 is actually output as an image.
FIG. 2 is a diagram illustrating a result of the parallax correction. FIG. 2 is a view in which the output image area 3 is moved in the direction of arrow 6 to the finder observation area 2 in FIG. In this figure, the finder observation area 2 is included in the output image area 3, and the hatched area 5 is generated, so that the entire finder observation area 2 is always included.
FIG. 3 is a flowchart of the parallax correction method according to the first embodiment of the present invention. This will be described with reference to FIGS. The release button is constituted by a two-step operation. First, when the first release is turned ON as a first step (YES route of S1), a shift between the finder observation area 2 and the output image area 3 by the photographing optical system, that is, The amount of parallax depends on the distance to the subject. Therefore, first, the shooting distance to the subject is calculated from the output of the automatic focusing device (S2), and then the parallax amount is calculated based on the calculation result (S3). Next, based on the amount of parallax, an area to be taken out as an output image is selected so as to overlap the finder observation area 2 or to cover the finder observation area 2 (S4). If the first release is ON from this state (YES route in S5) and the second release is ON (YES route in S6), the selected image area is output as an output image (S7).
[0009]
FIG. 4 is a flowchart of a parallax correction method according to the second embodiment of the present invention. This will be described with reference to FIG. In the case of a digital still camera equipped with a zoom lens that changes the angle of view of the photographing lens, the amount of parallax varies not only with the distance to the subject but also with the angle of view of the photographing lens. Therefore, the parallax amount is calculated by using two pieces of information of the angle of view and the distance information. In the flowchart, the angle of view information is acquired before the acquisition of the distance information. However, in practice, the parallax can be corrected even if the distance information is acquired before the angle of view information. First, the release button is constituted by a two-step operation. First, when the first release is turned on as a first step (the route of YES in S11), the angle of view taken by the zoom lens is calculated (S12). Next, the deviation between the finder observation region 2 and the output image region 3 by the photographing optical system, that is, the amount of parallax differs depending on the distance to the subject. Therefore, first, the shooting distance to the subject is calculated from the output of the automatic focusing device (S13), and then the parallax amount is calculated based on the calculation result of the shooting angle of view and the shooting distance (S14). Next, based on the amount of parallax, an area to be taken out as an output image is selected so as to overlap the finder observation area 2 or to cover the finder observation area 2 (S15). In this state, if the first release is ON (YES route in S16) and the second release is ON (YES route in S17), the selected image area is output as an output image (S18).
FIG. 5 is a diagram illustrating a case where parallax correction is not possible. When the observation region 10 of the finder optical system is not included in the entire image sensor 11 region of the photographing optical system, parallax correction becomes impossible. In this case, it is necessary to warn the photographer that parallax correction has become impossible.
[0010]
FIG. 6 is a flowchart of the parallax correction method according to the third embodiment of the present invention. This will be described with reference to FIG. In the case of a digital still camera equipped with a zoom lens that changes the angle of view of the photographing lens, the amount of parallax varies not only with the distance to the subject but also with the angle of view of the photographing lens. Therefore, the parallax amount is calculated by using two pieces of information of the angle of view and the distance information. In the flowchart, the angle of view information is acquired before the acquisition of the distance information. However, in practice, the parallax can be corrected even if the distance information is acquired before the angle of view information. First, the release button is configured by a two-step operation. First, when the first release is turned on as a first step (the route of YES in S21), the angle of view taken by the zoom lens is calculated (S22). Next, the deviation between the finder observation region 10 and the output image region 12 by the photographing optical system, that is, the amount of parallax differs depending on the distance to the subject. Then, the shooting distance to the subject is calculated from the output of the automatic focusing device (S23), and then the parallax amount is calculated based on the calculation result of the shooting angle of view and the shooting distance (S24). Next, based on the amount of parallax, an area to be taken out as an output image is selected so as to overlap the finder observation area 10 or to cover the finder observation area 10 (S25). As a result, it is determined whether or not the finder observation region 10 is included in the entire image sensor region 11 (S26). If it is included (YES route in S26), the first release is turned on from that state (S28). If the second release is turned on (YES route in S29), the selected image area is output as an output image (S30). If not included in step S26 (NO route in S26), a warning indicating that parallax correction is impossible is displayed (S27), and from this state the first release is ON (YES route in S28) and the second release is not performed. If it is turned on (the route of YES in S29), the selected image area is output as an output image (S30).
[0011]
FIG. 7 is a flowchart of a parallax correction method according to the fourth embodiment of the present invention. In addition to the above-mentioned warning display, it is also necessary to make it impossible to take a picture so as not to acquire an image in a composition not intended by the photographer. This will be described with reference to FIG. In the case of a digital still camera equipped with a zoom lens that changes the angle of view of the photographing lens, the amount of parallax varies not only with the distance to the subject but also with the angle of view of the photographing lens. Therefore, the parallax amount is calculated by using two pieces of information of the angle of view and the distance information. In the flowchart, the angle of view information is acquired before the acquisition of the distance information. However, in practice, the parallax can be corrected even if the distance information is acquired before the angle of view information. First, the release button is configured by a two-step operation. First, when the first release is turned on as a first step (YES route in S31), the angle of view of the image taken by the zoom lens is calculated (S32). Next, the deviation between the finder observation region 10 and the output image region 12 by the photographing optical system, that is, the amount of parallax differs depending on the distance to the subject. Therefore, the shooting distance to the subject is calculated from the output of the automatic focusing device (S33), and then the parallax amount is calculated based on the calculation result of the shooting angle of view and the shooting distance (S34). Next, based on the amount of parallax, an area to be extracted as an output image is selected so as to overlap the finder observation area 10 or to cover the finder observation area 10 (S35). As a result, it is determined whether or not the finder observation area 10 is included in the entire image pickup element area 11 (S36). If it is included (YES route in S36), the first release is turned on from that state (S39). If the second release is turned ON (YES route in S40), the selected image area is output as an output image (S41). If not included in step S36 (NO route in S36), a message indicating that parallax correction is impossible is displayed as a warning (S37), and the first release is turned on and stopped in that state (NO route in S38).
However, depending on the shooting situation, it may be necessary to give priority to shooting even if the composition deviates from the intended one. Therefore, it is necessary to allow the photographer to set in advance whether to enable or disable the function that disables shooting depending on the shooting situation.
[0012]
FIG. 8 is a flowchart of the parallax correction method according to the fifth embodiment of the present invention. This will be described with reference to FIG. First, FIG. 8A is a menu subroutine for turning on / off the second release control by using a switch other than the release switch. In this case, it is determined whether or not the second release lock control is to be performed (S63). If locked, the flag SW is turned ON (S64), and if not locked, the flag SW is turned OFF (S65). This state is set in advance. In the case of a digital still camera equipped with a zoom lens that changes the angle of view of the photographing lens, the amount of parallax varies not only with the distance to the subject but also with the angle of view of the photographing lens. Therefore, the parallax amount is calculated by using two pieces of information of the angle of view and the distance information. In the flowchart, the angle of view information is acquired before the acquisition of the distance information. However, in practice, the parallax can be corrected even if the distance information is acquired before the angle of view information. First, the release button is configured by a two-step operation. First, when the first release is turned on as a first step (the route of YES in S51), the angle of view taken by the zoom lens is calculated (S52). Next, the deviation between the finder observation region 10 and the output image region 12 by the photographing optical system, that is, the amount of parallax differs depending on the distance to the subject. Then, the shooting distance to the subject is calculated from the output of the automatic focusing device (S53), and then the parallax amount is calculated based on the calculation result of the shooting angle of view and the shooting distance (S54). Next, based on the amount of parallax, an area to be extracted as an output image is selected so as to overlap the finder observation area 10 or to cover the finder observation area 10 (S55). As a result, it is determined whether or not the finder observation area 10 is included in the entire image sensor area 11 (S56). If it is included (YES route in S56), the first release is turned on from that state (S60). If the second release is ON (YES route in S61), the selected image area is output as an output image (S62). If the flag is not included in step S56 (NO route in S56), a message indicating that parallax correction is impossible is displayed as a warning (S57), the first set flag is determined (S58), and the flag SW is ON. Then, the first release is turned on and stopped (NO route in S59). If the flag SW is OFF in step S58, the process proceeds to step S60.
In addition, a digital still camera may have both a finder optical system different from the photographing optical system and a TTL (Through the Recording Lens) finder for displaying an image obtained from the photographing optical system on a liquid crystal monitor or the like. is there. In such a case, it is preferable to enable or disable the parallax correction according to the present invention depending on the state of the TTL finder.
[0013]
FIG. 9 is a flowchart of the parallax correction method according to the sixth embodiment of the present invention. This will be described with reference to FIGS. The release button is constituted by a two-step operation. First, when the first release is turned on as a first step (YES route of S71), it is determined whether or not the TTL finder is used (S72). If used, the process proceeds to step S76 without performing parallax correction. If the TTL finder is used in step S72, the shooting distance to the subject is calculated from the output of the automatic focusing device (S73), and then the parallax amount is calculated based on the calculation result (S74). Next, based on the amount of parallax, an area to be taken out as an output image is selected so as to overlap the finder observation area 2 or to cover the finder observation area 2 (S75). In this state, if the first release is ON (YES route in S76) and the second release is ON (YES route in S77), the selected image area is output as an output image (S78).
[0014]
【The invention's effect】
As described above, according to the first aspect of the present invention, the distance to the subject is calculated, and the parallax amount is calculated based on the distance to correct the image displacement. An actual output image can be matched.
According to the second aspect, the distance to the subject is measured by the photographing distance calculating means in order to calculate the parallax amount, so that an accurate parallax amount according to the distance can be calculated.
According to the third aspect, even when the zoom lens is mounted, the parallax amount is calculated from the distance information and the angle-of-view information, so that the parallax of the digital still camera mounted with the zoom lens can be accurately corrected.
According to the fourth aspect, since the parallax amount calculating means calculates from both the distance information and the angle of view information, the parallax can be accurately corrected even in photographing by zooming.
According to claim 5, the output image area is moved so as to overlap or cover the finder observation area based on the calculation result of the parallax calculation means, so that the entire finder observation area is output as the output image area. be able to.
According to the sixth aspect, when the finder observation area exceeds a predetermined range, a warning that parallax correction cannot be performed is warned, so that the photographer can be warned that unnecessary shooting is performed.
According to the seventh aspect, when the finder observation area exceeds a predetermined range, a warning that parallax correction is impossible is given, and shooting is disabled, so that useless shooting can be reduced as much as possible. .
According to the eighth aspect, since the photographer can select in advance whether to enable or disable the function that disables photographing, the photographer can photograph a scene intended by himself.
In the ninth aspect, whether or not to execute the parallax correction is determined based on the operation state of the TTL finder, so that unnecessary operations can be reduced and efficient imaging can be performed.
[Brief description of the drawings]
FIG. 1 is a diagram showing a relationship between an observation range by a finder optical system of the present invention and a photographing range by a photographing optical system.
FIG. 2 is a diagram illustrating a result of parallax correction of the present invention.
FIG. 3 is a flowchart of a parallax correction method according to the first embodiment of the present invention.
FIG. 4 is a flowchart of a parallax correction method according to a second embodiment of the present invention.
FIG. 5 is a diagram illustrating a case where parallax correction of the present invention is not possible.
FIG. 6 is a flowchart of a parallax correction method according to a third embodiment of the present invention.
FIG. 7 is a flowchart of a parallax correction method according to a fourth embodiment of the present invention.
FIG. 8 is a flowchart of a parallax correction method according to a fifth embodiment of the present invention.
FIG. 9 is a flowchart of a parallax correction method according to a sixth embodiment of the present invention.
[Explanation of symbols]
S1 First release ON, S2 Shooting distance calculation, S3 Parallax amount calculation, S4 Output image range calculation

Claims (9)

A shooting optical system that uses a part of the image area captured by the image sensor as an output image area, a viewfinder optical system that uses a field of view that can be seen from the viewfinder, and an autofocus that automatically adjusts the focal length to the subject A digital still camera comprising:
Shooting distance calculating means for calculating the distance to the subject based on the output from the automatic focusing device; and parallax which is a shift between a finder observation area from the finder optical system and an output image area by the shooting optical system. A parallax amount calculating means for calculating the amount, and an output image range calculating means for calculating a range of the output image area based on the parallax amount calculated by the parallax amount calculating means. Digital still camera. 2. The digital still camera according to claim 1, wherein the parallax amount calculation unit calculates the parallax amount based on the distance to the subject calculated by the shooting distance calculation unit. 3. A shooting optical system that uses a part of the image area captured by the image sensor as an output image area, a viewfinder optical system that uses a field of view that can be seen from the viewfinder, and an autofocus that automatically adjusts the focal length to the subject A digital still camera comprising:
A photographing angle calculator for calculating a photographing angle of view of a zoom lens for changing a photographing angle of view to a photographing lens; Parallax amount calculating means for calculating a parallax amount which is a deviation between a finder observation area from the finder optical system and an output image area by the photographing optical system; and a parallax amount calculated by the parallax amount calculating means. Digital still camera, further comprising: output image range calculating means for calculating the range of the output image area based on. The parallax amount calculating means calculates the parallax amount based on the shooting angle of view of the zoom lens calculated by the shooting angle of view calculating means and the distance to the subject calculated by the shooting distance calculating means. The digital still camera according to claim 3, wherein: The output image range calculating means is based on the parallax amount calculated by the parallax amount calculating means, so that an output image area of the photographing optical system overlaps a finder observation area from the finder optical system, or 4. The digital still camera according to claim 1, wherein the output image area is moved so as to cover the entire viewfinder observation area. As a result of calculating the output image range by the output image range calculating means based on the parallax amount calculated by the parallax amount calculating means, the shooting range by the shooting optical system is the entire viewfinder observation area from the viewfinder optical system. 4. The digital still camera according to claim 1, wherein when it becomes impossible to include the information, a warning is displayed to the effect that correction by the output image range calculation means is impossible. As a result of calculating the output image range by the output image range calculating means based on the parallax amount calculated by the parallax amount calculating means, the shooting range by the shooting optical system is the entire viewfinder observation area from the viewfinder optical system. 4. When it becomes impossible to cover the image, a warning is displayed to the effect that the correction by the output image range calculating means is impossible, and the photographing is disabled. Digital still camera. As a result of calculating the output image range by the output image range calculating means based on the parallax amount calculated by the parallax amount calculating means, the shooting range by the shooting optical system is the entire viewfinder observation area from the viewfinder optical system. When it is not possible to include the warning, a warning is displayed to the effect that the correction by the output image range calculation means is impossible, and it is possible to select whether or not to make the shooting impossible. The digital still camera according to claim 1. In a digital still camera further provided with a TTL finder for displaying images obtained from the finder optical system and the photographing optical system on monitor means,
The digital still camera according to any one of claims 1 to 8, wherein the parallax correction according to any one of claims 1 to 8 can be switched according to an operation state of the TTL finder. .

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