Digital camera

Abstract

A digital camera is provided with a photographing lens having a aperture mechanism, an imaging section, including an image sensor for capturing a subject image via the photographing lens, a display section capable of displaying image information, an aperture drive section for driving the aperture mechanism to a specified position in response to manual operation of a preview instruction member, and a control section for 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. The control section stops the moving image display during drive of the aperture mechanism by the aperture drive mechanism, to thereby prevent unnatural variation in brightness of an image in live view display when a preview operation is carried out.

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, comprising: a photographing lens having an aperture mechanism;an imaging section, including an image sensor for capturing a subject image via the photographing lens;a display section capable of displaying image information;an aperture drive section for driving the aperture mechanism to an aperture position in response to a first operation of a preview instruction member, and restoring the aperture to a wide open position in response to a second operation subsequent to the first operation; anda control section for 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 the control section fixes the moving image display during a stopping down operation of the aperture mechanism by the aperture drive mechanism, and during a restoration operation to the wide open position.

2. A digital camera, comprising: a photographing lens having an aperture mechanism;an imaging section, including an image sensor for capturing a subject image via the photographing lens;a display section capable of displaying image information;an aperture drive section for driving the aperture mechanism to a set position in response to a manual operation of a preview instruction member; anda control section for 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 the control section stops the moving image display during drive of the aperture mechanism by the aperture drive section.

3. The digital camera of claim 2, wherein the display section fixes a display image in response to a stop instruction for the moving image display from the control section.

4. The digital camera of claim 2, wherein the control section resumes the moving image display if the aperture mechanism drive is completed.

5. A digital camera, comprising: a photographing lens having an aperture mechanism;an imaging section, including an image sensor for capturing a subject image via the photographing lens;a display section capable of displaying image information;an aperture drive section for driving the aperture mechanism; anda control section for 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 the control section fixes the moving image display when drive of the aperture mechanism is carried out by the aperture drive mechanism during display of the moving image.

6. A control method for a digital camera, comprising: capturing subject images for a specified period using an image sensor, and displaying the images as a moving image on a display device;fixing the moving image display in response to an instruction signal instructing execution of a preview operation, and then driving an aperture mechanism inside a photographing lens to a specified position; andresuming the moving image display after the aperture mechanism drive.

7. The control method for a digital camera of claim 6, wherein the moving image display is fixed in response to an instruction signal after a preview operation is completed, and the aperture mechanism is driven to a wide open position, andthe moving image display is resumed after the aperture mechanism is driven to the wide open position.