JP2001078061A - Digital camera, control method, and storage medium - Google Patents

Abstract

PROBLEM TO BE SOLVED: To obtain a digital camera, a control method, and a storage medium which accurately inform a user of the number of actually photographable pictures, which is determined by the remaining capacities of a recording medium and a battery and enable a user to easily confirm the classification of the recording medium set to the camera and enable the user to surely perform his or her desired photographing. SOLUTION: This camera is provided with a power source capacity detection means 18, a recording medium capacity detection means 19 which detects the remaining capacity of the recording medium, a setting means 21 which sets the information volume per photographed picture, a first allowed photograph number calculation means 22 which calculates the number of photographs which can be recorded in the recording medium 9 is accordance with the remaining capacity of the recording medium and the information volume per photographed picture, a second allowed photograph number calculation means 23 which calculates the number of pictures which can be photographed with the same power source in accordance with the power required for one photograph which is preliminarily obtained by the capacity of the power source detected by the means 18 and the information volume per photographed picture, and a display means 17 which displays at least one of first and second allowed photograph numbers of sheets.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

[0001] 1. Field of the Invention [0002] The present invention relates to a digital camera, and more particularly to a digital camera that operates by recording still image data on a recording medium.

[0002]

2. Description of the Related Art A digital camera displays the number of recordable images that can be recorded on a recording medium.
No. 2,210,958 discloses the absolute amount of the recordable remaining amount and the ratio of the recordable remaining amount to the total recordable capacity of the recording medium, and indicates the recordable remaining amount when the information amount per captured image is different. There is a proposal to display and it is also known to display the remaining capacity of the battery.

[0003] In a digital camera, image data is recorded on a recording medium such as a magnetic recording device or a semiconductor memory and operated, but these recording media have the same shape and different types. Is compatible with these various types of recording media. The following are proposals for recording media used in these digital cameras. That is, the type of recording medium disclosed in JP-A-5-21958 is detected and the remaining recordable amount is displayed, and the presence / absence of a recording medium disclosed in JP-A-6-6742 is detected and displayed.

[0004]

When a user is using a digital camera and cannot take a picture, <1> although the battery capacity remains, the recording medium has run out of recordable remaining capacity and cannot take a picture.

<2> Although the recordable remaining amount of the recording medium remains, the remaining capacity of the battery is depleted, and photographing cannot be performed.

And the like.

[0007] The user has a desire to know the actual number of shootable images in combination with the above two cases.

However, in the conventional proposal as described above, the user can know the remaining capacity of the battery, but cannot know the number of recordable images of the remaining capacity.

In the prior art, when the main power supply is turned on, the information amount per captured image is set and the remaining recording amount is displayed. Therefore, if the structure of the operation unit for setting the amount of information per sheet is a mechanically structured operation unit that can be set even when the main power is not turned on, one operation is performed when the main power is not turned on. There is a drawback that the remaining recording amount is not displayed even if the setting of the information amount is changed.

In addition, different types of recording media have different characteristics. For example, a semiconductor memory requires power only at the time of recording and reproduction, consumes little power, but requires a long time to record and reproduce data. On the other hand, a magnetic recording device for a hard disk always requires electric power, and further requires more electric power during recording and reproduction. Therefore, although the shooting interval may be long,
A semiconductor memory is suitable for a user who has low power consumption and wants to reduce battery consumption, and a hard disk type magnetic recording device is suitable for a user who wants to shorten the shooting interval even when the battery consumption is large. If the user uses an incorrect recording medium, he or she cannot take a picture desired by the user, and the user needs to be able to easily confirm the type of recording medium attached to the camera when using the digital camera.

However, in the above proposal, the type of recording medium is detected and the remaining recordable amount is displayed.
There is no indication of the type of recording medium detected, and the user cannot easily confirm the type of recording medium mounted on the camera. Further, in the above proposal, since the presence or absence of the recording medium is detected and displayed, the type of the recording medium is not displayed in this case, and the user can easily confirm the type of the recording medium mounted on the camera. There are issues such as not being able to do so.

SUMMARY OF THE INVENTION The present invention has been made in view of the above circumstances, and accurately notifies a user of an actual number of recordable images determined from a remaining capacity of a recording medium and a remaining capacity of a battery. It is an object of the present invention to provide a digital camera, a control method, and a storage medium capable of easily confirming the type of recording medium used, and realizing that a user can reliably perform desired photographing.

[0013]

The present invention can solve the above-mentioned problems by providing the following constitution.

(1) In a digital camera, a power supply capacity detecting means for detecting a capacity of a power supply, a recording medium capacity detecting means for detecting a remaining capacity of a recording medium, and a setting means for setting an information amount per photographed image Calculating the first recordable number of images recordable on the recording medium from the remaining capacity of the recording medium detected by the recording medium capacity detection unit and the information amount per photographed image set by the setting unit; Number of sheets calculating means, power supply capacity detected by the power supply capacity detecting means,
And calculating a second number of recordable images that can be photographed with the same power supply from the power required for photographing one image previously obtained from the information amount per photographed image set by the setting unit.
A digital camera, comprising: a number-of-capturable-images calculating means; and a display means for displaying at least one of the first number-of-images and the second number-of-images.

(2) A display means for comparing the first recordable number with the second recordable number, and setting the smaller one as the third recordable number, and displaying the third recordable number. The digital camera according to the above (1), wherein the digital camera is provided.

(3) A display is made between the case where the third photographable number is the first photographable number and the case where the third photographable number is the second photographable number. The digital camera as described in the above item (2), wherein the digital camera has a different display form by distinguishing the digital camera.

(4) The power supply capacity detection means has an instruction means for instructing the detection of the power supply capacity. The display content of the display means usually indicates the first number of recordable images, and the instruction means is operated. Occasionally, the power supply capacity detecting means detects the capacity of the power supply, the second photographable number calculating means calculates the second photographable number, and displays the second photographable number on the display means for a certain period of time. The digital camera according to the above (1), wherein:

(5) The digital camera has a recording medium type detecting means for detecting the type of the recording medium attached to the camera, and a display means for displaying the detection result of the recording medium type detecting means. Digital camera that features.

(6) The digital camera according to the above (5), wherein the display means displays the detection result of the recording medium type detection means even when the main power switch is off.

(7) When the recording medium is changed when the main power switch is turned off, the recording medium type detecting means detects the type of the recording medium, and the display means displays the recording medium type detecting means. (5) The digital camera according to the above (5), wherein the result of the detection is displayed.

(8) There are a plurality of recording modes having different recording information amounts per captured image, a setting means for setting the recording mode, a recording medium capacity detecting means for detecting a remaining capacity of the recording medium, A photographable number calculating unit for calculating a recordable number of images recordable on the recording medium from the remaining capacity of the recording medium detected by the recording medium capacity detecting unit and a recording mode set by the setting unit; and displaying the photographable number. In a digital camera including a display unit, the setting unit can set a recording mode even when the main power switch is off, and the recording mode is set by the setting unit when the main power switch is off. A digital camera, wherein the photographable number calculating means calculates the photographable number, and the display means displays the photographable number.

(9) The setting means is a photographing mode setting means for simultaneously setting one photographing mode used for photographing and a corresponding recording mode among a plurality of photographing modes defining the recording mode. The digital camera according to the above (8).

(10) The digital camera according to the above (8), wherein the plurality of recording modes have different compression ratios.

(11) The digital camera according to the above (8), wherein the plurality of recording modes have different numbers of pixels of an image.

(12) The digital camera according to (8), wherein the plurality of recording modes have different compression ratios and different numbers of pixels of images.

(13) A method for controlling a digital camera, wherein a step of detecting a capacity of a power supply, a step of detecting a remaining capacity of a recording medium, a step of setting an information amount per captured image, Calculating the first recordable number of images recordable on the recording medium from the remaining capacity of the recording medium and the set information amount per photographed image; and setting the detected power supply capacity and the setting means. 1 previously obtained from the amount of information per captured image
From the power required to take a photo, the second power source can be used with the same power supply
Calculating the number of images that can be taken, displaying at least one of the first number of images that can be taken and the second number of images that can be taken, and further calculating the first number of images that can be taken and the second number of images that can be taken. A step of displaying the third possible number of shots as a third possible number of shots by comparing the smaller number with the number of possible shots, and a case where the third possible number of shots is the first possible number of shots; The third number of recordable images is the second
The step of instructing to detect the power supply capacity in the power supply capacity detection step, wherein the operation for instructing is performed. Sometimes, detecting the capacity of the power supply and calculating the second number of recordable images, displaying the second number of recordable images for a certain period of time, and the type of recording medium mounted on the camera body Detecting and displaying the data, and when the main power switch is off, displaying the detection result.If the recording medium is changed when the main power switch is off, the type of the recording medium is detected. Displaying the detection result, and setting a plurality of recording modes having different recording information amounts per captured image, and setting the recording modes. Detecting the remaining capacity of the medium, calculating the number of recordable images that can be recorded on the recording medium from the detected remaining capacity of the recording medium and the set recording mode, and displaying the number of recordable images. In the method of controlling a digital camera provided with, it is possible to set a recording mode even when the main power switch is turned off, and when the recording mode is set by the setting unit when the main power switch is turned off, a photographing operation is performed. Calculating the number of possible shots and displaying the number of shootable shots, and the plurality of recording modes include a plurality of shooting modes in which the recording mode is defined, corresponding to each of the recording modes; Including simultaneously setting one shooting mode to be used for shooting from among a plurality of shooting modes and a corresponding recording mode. The method according to claim and.

(14) A storage medium storing a program for realizing the control method described in (13) above.

[0028]

DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described below.

FIG. 1 is a block diagram showing a configuration example of a main part of a digital camera according to the present invention. FIG. 2 is a flowchart of a display subroutine of the digital camera in the present embodiment.
FIG. 3 is a flowchart of a photographing sequence of the digital camera according to the present embodiment. FIG. 4 is a flowchart illustrating a procedure for setting or changing the information amount per photographed image using the setting unit according to the present embodiment. , FIG.
FIG. 6 is a flowchart showing a procedure when changing the recording medium in the present embodiment. FIG. 6 is a flowchart showing a procedure when the power capacity detection switch is operated to check the power capacity in the present embodiment. FIG. 8 is an explanatory diagram showing a segment display example, FIG. 8 is an explanatory diagram showing a power supply capacity display example, and FIG.
FIG. 11 is an explanatory diagram showing a segment display example in another embodiment.

(Embodiment 1) In FIG. 1, reference numeral 1 denotes a CPU for controlling the entire digital camera, reference numeral 2 denotes a photographing lens, and reference numeral 3 denotes a lens driving device, and the photographing lens 2 is operated by an output of a focus detection device (not shown). To adjust the focus. Reference numeral 4 denotes a shutter, and 5 denotes a shutter charging mechanism, which includes a motor and a driving mechanism (not shown), and charges the shutter 4. Reference numeral 7 denotes a photoelectric conversion element such as a CCD, which converts a subject image formed by the photographing lens 2 into an image signal. Reference numeral 8 denotes an image processing unit which performs various processes on an image signal of the photoelectric conversion element 7 and converts the image signal into image data. Reference numeral 9 denotes a recording medium for recording image data, which comprises a built-in or detachable magnetic recording device, a semiconductor memory, or the like.
A recording unit 10 records image data on the recording medium 9. Reference numeral 12 denotes a power supply such as a battery. Reference numeral 15 denotes a switch for forming the SW1 and starting a shooting preparation operation, and 16 denotes a switch for forming the SW1.
Reference numeral 25 denotes a release switch that forms SW2, and reference numeral 25 denotes a main power switch that forms SW4.

As will be described later, even when the main power switch 25 forming the switch SW4 is off, power is supplied so that some functions are operated.
Reference numeral 17 denotes a display unit such as a liquid crystal display, which displays a captured image and various information of a camera. The display means 17 continues to display even when the main power switch 25 forming the switch SW4 is off.
Reference numeral 18 denotes a power supply capacity detecting means (device) for detecting the capacity of the power supply 12 such as a battery. Reference numeral 19 denotes a recording medium capacity detecting unit (device), which detects the remaining capacity of the recording medium 9. 2
Reference numeral 0 denotes a recording medium type detecting means (apparatus).
Detect the type of

The digital camera of the present embodiment has a
There are a plurality of recording modes having different amounts of recording information per sheet, and the plurality of recording modes have different compression ratios and / or different numbers of image pixels. 21 is a setting means,
The information amount per sheet or the recording mode is set. Reference numeral 22 denotes first photographable number calculating means, which is a ratio between the remaining capacity of the recording medium 9 detected by the recording medium capacity detecting means (apparatus) 19 and the information amount per sheet set by the setting means 21; The first number of recordable images that can be recorded on the recording medium 9 is calculated from a predetermined information amount ratio per image corresponding to the recording mode. Reference numeral 23 denotes a second photographable number calculating unit, which is a power supply capacity detecting unit (device) 18.
Of the power supply 12 detected by
From the information amount per image, or the information amount per image corresponding to the recording mode and determined in advance, and the power required for photographing one image determined in advance, a second image can be taken with the same power supply 12. The number of recordable images is calculated. Reference numeral 24 denotes a power capacity detection switch forming the SW3. When the power capacity detection switch 24 forming the SW3 is turned on, the power capacity detection means 18 detects the capacity of the power supply 12.

FIG. 2 is a flowchart of a display subroutine of the digital camera according to the present embodiment. An operation example of the display subroutine will be described with reference to FIG.

First, in step S1, the power supply capacity detecting device 18 detects the capacity of the power supply 12, and in step S2, the recording medium type detecting device 20 detects the type of the recording medium 9, and in step S3, the recording medium capacity The detecting device 19 is a recording medium 9
In step S4, the first recordable number calculating means 22 determines the remaining capacity of the recording medium 9 detected by the recording medium capacity detecting device 19 and the photographed image 1 set by the setting means 21 in step S4. The setting of the information amount per photographed image by the setting means 21 based on the ratio of the information amount per image or the ratio to the predetermined information amount per image corresponding to the recording mode. The first number of recordable images M, which is the number of images that can be recorded in the camera, is calculated. Step S
In step 5, the second number-of-capturable-images calculating means 23 determines the capacity of the power supply 12 detected by the power supply capacity detecting device 18, the information amount per captured image set by the setting means 21, and a predetermined one Setting means based on the ratio of the power consumption required for photographing the image, or from a predetermined amount of information per image corresponding to the recording mode and a predetermined power consumption required for photographing one image. The second number N of images that can be photographed by the power supply 12 is calculated by setting the information amount per photographed image by 21.

In step S6, the magnitude of the first photographable number M and the second photographable number N is determined. If M> N, the process proceeds to step S7, and if M <N, the process proceeds to step S9.

In step S7, the third photographable number L, which is the smaller of the first photographable number M and the second photographable number N, is set to N. In step S8, the third photographable number L is set to M. In step S9, the display unit 17
Are the power supply capacity, storage medium type, first shootable number,
Various information of the camera, such as the number of images that can be taken and the third number of images that can be taken, are displayed as necessary, and the operation is terminated.

Main power switch 25 forming SW4
Is turned off, this subroutine is executed and display is performed.

FIG. 3 is a flowchart of a photographing sequence of the digital camera according to the present embodiment. With reference to the flowchart of FIG. 3, a sequence at the time of shooting in the present embodiment will be described.

In step S101, it is determined whether or not the photographing preparation operation start switch 15 for forming SW1 has been turned on.
If ES, proceed to step S102; if NO, step S102
Return to 101. In step S102, focus detection is performed by a focus detection device (not shown). In step S103, the lens driving device 3 operates the photographing lens 2 based on the output of the focus detection device (not shown) to adjust the focus. SW in step S104
It is determined whether or not the release switch 16 forming No. 2 has been turned on. If YES, the process proceeds to step S105, and if NO, the process returns to step S104. Shutter 4 in step S105
Is opened, and in step S106, the photoelectric conversion element 7 converts the subject image formed by the photographing lens 2 into an image signal, and captures the image. In step S107, the shutter 4 is closed. After the shutter 4 is closed, the shutter charge mechanism 5 is closed.
Charges Shutter 4. Next, step S10
At 8, the image processing means 8 performs various processes on the image signal of the photoelectric conversion element 7 and performs image processing for converting the image signal into image data.
In step S109, the recording unit 10 records the image data on the recording medium 9. In step S110, the display unit 17 converts the image data into a video signal and displays a captured image. Then, the process proceeds to a display subroutine in step S111.

FIG. 4 is a flowchart showing a procedure for setting or changing the information amount per photographed image using the setting means in the present embodiment. The procedure will be described below with reference to this flowchart. .

In step S201, the amount of information per photographed image is set or changed by the setting means 21. In the next step S202, the process proceeds to a display subroutine.

The setting means 21 can be set even when the main power switch 25 forming the SW 4 is off, and the sequence is executed and the display is performed.

FIG. 5 is a flowchart showing a procedure for changing the recording medium in the present embodiment. The sequence for changing the recording medium 9 will be described below.

In step S301, the user replaces the recording medium 9 stored in a recording medium storage device (not shown).
In step S302, the process proceeds to a display subroutine.

The user can exchange the recording medium 9 stored in the recording medium storage device (not shown) even when the main power switch 25 forming the SW 4 is off, and the sequence is executed and the display is displayed. Done.

FIG. 6 is a flowchart showing a procedure for operating the power supply capacity detection switch to check the power supply capacity in this embodiment. Hereinafter, the user operates the power supply capacity detection switch SW3 to check the power supply capacity. The sequence at the time of performing is described.

In step S401, it is determined whether the power supply capacity detection switch 24 forming the switch SW3 has been turned on. YE
If S, proceed to step S402; if NO, step S4
Return to 01. In step S402, the process proceeds to a display subroutine.

The user can operate the power capacity detection switch 24 forming the SW3 even when the main power switch 25 forming the SW4 is off, and the sequence is executed and the display is performed.

FIG. 7 is an explanatory view showing an example of segment display in the case of the embodiment 1 of the display means 17, and in the case of the figure, a state in which all segments are displayed for explanation. In fact, only the necessary segments are displayed.

In the figure, the components denoted by the same reference numerals are the same as those described above, and the description is omitted.

In the figure, reference numeral 49 denotes a photographed image display unit;
Is a power supply capacity display section. The power capacity display section 50 is shown in FIG.
The power supply 12 detected by the power supply capacity detecting device 18 as shown in FIG.
The three states of A; the capacity is sufficient, B; the capacity is less than half, and C; the capacity is 0 are displayed in accordance with the capacity of C. Reference numeral 51 denotes a recording medium type display unit. In the camera of the present embodiment, two types, a hard disk and a CF card, can be mounted. When it is detected that the disk is a hard disk, as shown at 52 in FIG.
D ”is displayed and when it is detected that it is a DF card,
As shown by 53 in the figure, "CF" is displayed, and when the recording medium storage device (not shown) is empty and nothing is detected, the recording medium type display section 51 does not display anything.

Numeral 54 denotes a first photographable number display comprising a three-digit seven-segment element, which displays the result of calculation by the first photographable number calculating means 22. Reference numeral 55 denotes a second displayable number of shots comprising a three-digit seven-segment element.
The calculation result of the number-of-shootable-images calculating means 23 is displayed.

The display means 17 is configured as described above.
When a display command is issued from the CPU 1 depending on the state of the camera,
A photographed image, a power supply capacity, a recording medium type, a first photographable number, and a second photographable number are displayed.

FIG. 9 is a diagram showing the second and third embodiments of the display means 17. The figure shows a state in which all the segments are displayed for explanation, and only the necessary segments are actually displayed.

(Embodiment 2) In Embodiment 2, reference numeral 56 in FIG. 9 denotes a third digit consisting of a three-digit seven segment element.
, The third possible number of images described in the above-described flowchart is displayed. The display is turned on when the third photographable number is the first photographable number, and blinks when the third photographable number is the second photographable number. ing. According to this embodiment, the user can know which of the recording medium 9 and the power supply 12 limits the number of images that can be taken, and can exchange the appropriate one of the recording medium 9 and the power supply 12 as necessary. it can.

(Embodiment 3) In Embodiment 3, reference numeral 56 in FIG. 9 indicates the number of images that can be shot, which is composed of three-digit seven-segment elements. indicate. Then, when the user
When the power supply capacity detection switch 24 forming W3 is operated and the power supply capacity is confirmed, the second number of recordable images is displayed for a certain period of time according to the flowchart shown in FIG. 6, and then the first number of photographable images is displayed again. . According to the present embodiment, the user can know the first recordable number and the second recordable number as necessary.

The display means of the second and third embodiments is the same as that of the first embodiment.
And the size of the entire camera can be reduced.

In addition, in addition, in a conventional digital camera, a plurality of photographing modes in which the above-mentioned recording modes are defined corresponding to each mode are provided, and the setting means 21 sets the plurality of photographing modes. It may be configured by a photographing mode setting means for simultaneously setting one photographing mode actually used for photographing from among them and the corresponding information amount per image.

[0059]

In the digital camera according to the first aspect of the present invention, a power supply capacity detecting means for detecting a power supply capacity, a recording medium capacity detecting means for detecting a remaining capacity of a recording medium,
Setting means for setting the amount of information per captured image; a remaining capacity of the recording medium detected by the recording medium capacity detecting means; and a second information recordable on the recording medium based on the information amount per captured image set by the setting means. The first photographable number calculating means for calculating the number of photographable images, the power supply capacity detected by the power supply capacity detecting means, and the information amount per photographed image set by the setting means are obtained in advance. Second photographable number calculating means for calculating a second photographable number that can be photographed with the same power supply from electric power required for one photographing;
Display means for displaying at least one of the number of recordable images and the second number of recordable images.

In the digital camera according to the second aspect of the present invention, the first photographable number and the second photographable number are compared, and the smaller one is set as the third photographable number.
Display means for displaying the number of recordable images.

[0061] In the digital camera according to the third aspect of the present invention, the case where the third photographable number is the first photographable number and the case where the third photographable number is the second photographable number And different display forms to distinguish the display.

[0062] In the digital camera according to the fourth aspect of the present invention, the power supply capacity detection means has an instruction means for instructing the detection of the power supply capacity, and the display content of the display means normally displays the first number of recordable images. When the instruction means is operated,
The power supply capacity detecting means detects the capacity of the power supply,
Calculating the second number of recordable images, and displaying the second number of recordable images on the display unit for a certain period of time.

With such a configuration, there is an effect that the user can be informed accurately of the actual number of recordable images determined by the remaining capacity of the recording medium and the remaining capacity of the battery.

According to the fifth aspect of the present invention, there is provided a recording medium type detecting means for detecting a type of a recording medium mounted on the camera, and a display means for displaying a detection result of the recording medium type detecting means. thing.

The invention according to claim 6, wherein the display means displays the detection result of the recording medium type detection means even when the main power switch is off.

In the invention according to claim 7, when the recording medium is changed when the main power switch is turned off, the recording medium type detecting means detects the type of the recording medium, and the display means displays the recording medium. Display the detection result of the medium type detection means.

Thus, the user can easily confirm the type of the recording medium mounted on the camera, which has an effect that the photographing desired by the user can be performed.

Further, according to the invention of claim 8, there are a plurality of recording modes having different recording information amounts per photographed image, a setting means for setting the recording modes, and a recording for detecting the remaining capacity of the recording medium. Medium capacity detection means, and the number of recordable pictures calculating means for calculating the number of recordable pictures recordable on the recording medium from the remaining capacity of the recording medium detected by the recording medium capacity detection means and the recording mode set by the setting means; Display means for displaying the number of recordable images, the setting means can set a recording mode even when the main power switch is off, and the setting means can set the recording mode when the main power switch is off. When a recording mode is set, the number of shootable images is calculated by the number of shootable images calculating means, and the number of shootable images is displayed by the display unit.

According to a ninth aspect of the present invention, the setting means is a photographing mode setting means for simultaneously setting one photographing mode used for photographing and a corresponding recording mode from among a plurality of photographing modes defining the recording mode. There is.

As a result, the size of the display means can be reduced, so that the entire camera can be downsized.

[Brief description of the drawings]

FIG. 1 is a block diagram showing a configuration example of a main part of a digital camera according to the present invention.

FIG. 2 is a flowchart of a display subroutine of the digital camera in the embodiment.

FIG. 3 is a flowchart of a photographing sequence of the digital camera in the present embodiment.

FIG. 4 is a flowchart illustrating a procedure for setting or changing the information amount per captured image using the setting unit according to the present embodiment.

FIG. 5 is a flowchart illustrating a procedure for changing a recording medium in the embodiment.

FIG. 6 is a flowchart illustrating a procedure when a power supply capacity detection switch is operated to check the power supply capacity in the present embodiment.

FIG. 7 is an explanatory diagram showing a segment display example.

FIG. 8 is an explanatory diagram showing a power supply capacity display example.

FIG. 9 is an explanatory diagram showing a segment display example in another embodiment.

[Explanation of symbols]

 Reference Signs List 1 CPU for controlling the entire digital camera 2 Photographing lens 3 Lens driving device 4 Shutter 5 Shutter charging mechanism 7 Photoelectric conversion element 8 Image processing means 9 Recording medium 10 Recording means 12 Power supply 15 Shooting preparation operation start switch SW1 16 Release switch SW2 17 Display Means 18 Power supply capacity detecting means 19 Recording medium capacity detecting means 20 Recording medium type detecting means 21 Setting means 22 First photographable number calculating means 23 Second photographable number calculating means 24 Power capacity detecting switch SW3 25 Main power switch SW4

Claims (14)

[Claims] 1. A digital camera, comprising: a power supply capacity detecting means for detecting a capacity of a power supply; a recording medium capacity detecting means for detecting a remaining capacity of a recording medium; and a setting means for setting an information amount per captured image. The first recordable on the recording medium is determined based on the remaining capacity of the recording medium detected by the recording medium capacity detecting means and the information amount per photographed image set by the setting means.
A first photographable number calculating means for calculating the number of photographable images, a power supply capacity detected by the power supply capacity detecting means, and an information amount per photographed image set by the setting means. Means for calculating a second number of recordable images that can be photographed with the same power supply from the power required for photographing a second image; A digital camera, comprising: display means for displaying at least one of them. 2. A display means for comparing the first recordable number with the second recordable number, setting a smaller one as a third recordable number, and displaying the third recordable number. 2. The digital camera according to claim 1, wherein: 3. A display is made in a case where the third photographable number is the first photographable number and a case where the third photographable number is the second photographable number. 3. The digital camera according to claim 2, wherein said digital camera has a different display form. 4. The power supply capacity detecting means has an instruction means for instructing the detection of the power supply capacity, and the display content of the display means usually displays the first number of images that can be taken, and when the instruction means is operated. Power supply capacity detecting means for detecting the capacity of the power supply, second photographable number calculating means for calculating the second photographable number, and displaying the second photographable number on the display means for a certain period of time. The digital camera according to claim 1, wherein: 5. A digital camera, comprising: a recording medium type detecting means for detecting a type of a recording medium mounted on the camera; and a display means for displaying a detection result of the recording medium type detecting means. And a digital camera. 6. The digital camera according to claim 5, wherein said display means displays a detection result of said recording medium type detection means even when a main power switch is off. 7. The recording medium type detecting means, when the recording medium is changed when the main power switch is turned off, detects the type of the recording medium, and the display means detects the type of the recording medium type detecting means. The digital camera according to claim 5, wherein a detection result is displayed. 8. A recording medium having a plurality of recording modes having different recording information amounts per captured image, setting means for setting the recording mode, recording medium capacity detecting means for detecting a remaining capacity of the recording medium, From the remaining capacity of the recording medium detected by the recording medium capacity detecting means and the recording mode set by the setting means,
In a digital camera, comprising: a number-of-capturable-images calculating unit for calculating the number of recordable images that can be recorded on a recording medium; and a display unit that displays the number of recordable images. When the recording mode is set by the setting unit when the main power switch is turned off, the number of shootable images is calculated by the number of shootable images, and the display unit displays the number of shootable images. A digital camera characterized by displaying the number of sheets. 9. A photographing mode setting unit for simultaneously setting one photographing mode to be used for photographing and a corresponding recording mode among a plurality of photographing modes defining the recording mode. The digital camera according to claim 8, wherein 10. The digital camera according to claim 8, wherein the plurality of recording modes have different compression ratios. 11. The digital camera according to claim 8, wherein each of the plurality of recording modes has a different number of pixels of an image. 12. The digital camera according to claim 8, wherein each of the plurality of recording modes has a different compression ratio and a different number of pixels of an image. 13. A method for controlling a digital camera, comprising:
Detecting the capacity of the power supply, detecting the remaining capacity of the recording medium, setting the information amount per captured image, and determining the remaining capacity of the recording medium and the set captured image. Calculating the first recordable number of images recordable on the recording medium from the information amount; and a single image number previously obtained from the detected power supply capacity and the information amount per photographed image set by the setting unit. Calculating the second number of recordable images that can be photographed with the same power supply from the power required for photographing; and displaying at least one of the first number of photographable images and the second number of photographable images; Further, the first photographable number and the second
A step of displaying the third possible number of pictures as a third possible number of pictures by comparing the number of possible pictures with the third possible number of pictures, and the third possible number of pictures is the first possible number of pictures. In the case where the third photographable number is the second photographable number, the display is distinguished to have a different display form, and in the power supply capacity detecting step, the power supply capacity detection is instructed. Detecting the power supply capacity and calculating the second number of recordable images when the instructing operation is performed, and displaying the second number of recordable images for a certain period of time. A step of detecting and displaying the type of recording medium mounted on the camera body; a step of displaying the detection result even when the main power switch is off; and a step of displaying the detection result even when the main power switch is off. When the recording medium is changed, the method includes the step of detecting the type of the recording medium and displaying the detection result, and further includes a plurality of recording modes in which the amount of recording information per captured image is different. Setting a mode, detecting the remaining capacity of the recording medium,
A digital camera control method including a step of calculating the number of recordable images that can be recorded on a recording medium from the detected remaining capacity of the recording medium and the set recording mode, a step of displaying the number of recordable images, and the like. The recording mode can be set even when the power switch is off, and when the recording mode is set by the setting unit when the main power switch is off, the number of recordable images is calculated and the number of recordable images is calculated. Displaying a; and
Further, the plurality of recording modes have a plurality of shooting modes in which the recording modes are defined, corresponding to each of the recording modes. One of the plurality of shooting modes is used for shooting. A control method including a step of simultaneously setting a corresponding recording mode. 14. A storage medium storing a program for realizing the control method according to claim 13.