Lens changeable digital camera

Abstract

A lens changeable digital camera has an imaging section, including an image sensor for capturing a subject image via the photographing lens, a display section capable of displaying image information and/or character information, a shielding section capable of being moved into and out of an imaging light path of the image sensor, a detection section for detecting an operation to remove the photographing lens, and a control section for, after the shielding section has been moved out of the imaging light path, causing execution of an exposure operation for a specified period in the imaging section, and causing display of a moving image on the display section based on image data acquired by the exposure operation. When it is detected by the detection section that an operation to remove the photographing lens has been carried out, the control section control the shielding section to cause the shielding section to be moved into the imaging light path, and causes display of character or symbol data instead of the moving image display on the display section.

Description

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 is an external perspective view of a digital single lens reflex camera relating to an embodiment of the present invention.

FIG. 2 is a block diagram showing the optical schematic structure of a digital single lens reflex camera relating to the embodiment.

FIG. 3 is a block diagram showing the overall schematic structure of a digital single lens reflex camera relating to the embodiment.

FIG. 4 is a block diagram showing the hierarchical structure of menus for display modes and operating modes of the digital single lens reflex camera relating to the embodiment.

FIG. 5 is a flowchart showing A mode of the embodiment.

FIG. 6 is a flowchart showing B mode of the embodiment.

FIG. 7 is a flowchart showing preview mode A of the embodiment.

FIG. 8 is a flowchart showing preview mode B of the embodiment.

FIG. 9 is a flowchart showing preview mode C of the embodiment.

FIG. 10 is a flowchart showing exposure operation A of the embodiment.

FIG. 11 is a flowchart showing exposure operation B of the embodiment.

FIG. 12 is a flowchart showing exposure operation C of the embodiment.

FIG. 13 is a flowchart for preview condition setting 1 and preview condition setting 2 of the embodiment.

FIG. 14 is a display screen for preview display mode of a liquid crystal monitor of the embodiment, with FIG. 14(A) showing A mode display and FIG. 14(B) showing B mode display.

FIG. 15 is a display on a liquid crystal monitor of the embodiment, with FIG. 15(A) showing an information display screen and FIG. 15(B) showing a menu display screen.

FIG. 16 is a block diagram showing the structure of a lens detection switch for detecting an attachment state of a lens barrel 10 with a camera body 20 of the embodiment, with FIG. 16A showing a state where a lens barrel is fitted to the camera body, and FIG. 16(B) showing a state where the lens barrel is removed from the camera body.

FIG. 17 is a display example for warning that a photographing lens has been removed during preview display, in the embodiment.

Claims

1. A digital camera for which a photographing lens can be changed, comprising: an imaging section, including an image sensor for capturing a subject image via the photographing lens;a display section capable of displaying at least one of image information and character information;a shielding section capable of being moved into and out of an imaging light path of the image sensor;a detection section for detecting an operation to remove the photographing lens; anda control section for, after the shielding section has been moved out of the imaging light path, causing execution of an exposure operation for a specified period in the imaging section, and causing display of a moving image on the display section based on image data acquired by the exposure operation,wherein, when it is detected by the detection section that an operation to remove the photographing lens has been carried out, the control section controls the shielding section to cause the shielding section to be moved into the imaging light path, and causes display of character or symbol data instead of the moving image display on the display section.

2. The digital camera of claim 1, wherein the shielding section is made up of at least one of a movable mirror that can be moved in or out of an imaging light path of the imaging section and a shutter for shielding the imaging section.

3. The digital camera of claim 1, wherein the control section controls the imaging section to stop the imaging operation for a specified period when an operation to remove the photographing lens is performed.

4. The digital camera of claim 1, wherein the character information is exposure information for the camera.

5. A digital camera for which a photographing lens can be changed, comprising: an imaging section, for capturing a subject image via the photographing lens for a specified period;a display section for displaying a moving image based on output of the imaging section; anda shielding member for shielding the imaging section by moving into the imaging light path when an operation to remove the photographing lens is carried out;wherein the imaging section stops the imaging operation for the specified period in conjunction with an operation to remove the photographing lens, and the display section performs camera information display instead of the moving image display in conjunction with the operation to remove the photographing lens.

6. The digital camera of claim 5, wherein the shielding member is made up of at least one of a movable mirror that can be moved in or out of an imaging light path of the imaging section and a shutter for shielding the imaging section.

7. The digital camera of claim 5, wherein the imaging section is controlled to have its supply of power cut off when an operation to remove the photographing lens is performed.

8. A control method for digital camera for which a photographing lens can be changed, comprising: moving a movable mirror, that is arranged in an imaging light path, out of the imaging light path;capturing subject images for a specified period using an image sensor, and displaying the images as a moving image on a display device;moving the movable mirror into the imaging light path when an operation to remove a photographing lens is carried out during display of the moving image; andstopping the moving image display and performing display in a different form to the moving image display when an operation to remove the photographing lens is carried out during display of the moving image.

9. The control method for a digital camera of claim 8, wherein a shutter provided at the front of the image sensor is opened during display of the moving image, the shutter is closed when the photographing lens is removed.

10. The control method for a digital camera of claim 8, wherein the capturing of subject images for a specified period is stopped when an operation to remove the photographing lens is performed.

11. A digital camera for which a photographing lens can be changed, comprising: an imaging section, for capturing subject images via the photographing lens for a specified period;a display section for displaying a moving image based on output of the imaging section;a shielding member for shielding the imaging section by moving into the imaging light path when an operation to remove the photographing lens is carried out; anda control section for stopping supply of power to the imaging section in conjunction with an operation to remove the photographing lens.

12. The digital camera of claim 11, wherein the display section stops display of the moving image and instead performs display of at least one of character, and symbol information when an operation to remove the photographing lens is carried out while the moving image is being displayed.

13. The digital camera of claim 12, wherein at least one of the character and symbol display is exposure information display, or warning display to indicate that the photographing lens has been removed.