초록 ▼

A control apparatus for a camera according to this invention causes a camera main body to start a photographing operation when a first signal is output by an operation of a release operating member. When proper photographing conditions cannot be obtained, e.g., in an out-of-focus or low-luminance st

A control apparatus for a camera according to this invention causes a camera main body to start a photographing operation when a first signal is output by an operation of a release operating member. When proper photographing conditions cannot be obtained, e.g., in an out-of-focus or low-luminance state or during a camera shake, the control apparatus does not cause the camera main body to start the photographing operation until a second signal is output by an operation of the release operating member. The control apparatus for a camera of this invention compares an electrical signal corresponding to an operation of the release operating member with a determination level corresponding to an operation timing of the camera main body, thereby determining a shutter release timing. The determination level can be changed in accordance with at least one of a luminance of an object to be photographed, a focal length of a photographic lens, and a photographing mode of the camera main body.

대표청구항 ▼

A control apparatus for a camera, comprising: a release operating member to be depressed by a predetermined amount, for causing a camera main body to perform a photographing operation; signal generating means for generating a photographing ready signal when said release operating member is depressed

A control apparatus for a camera, comprising: a release operating member to be depressed by a predetermined amount, for causing a camera main body to perform a photographing operation; signal generating means for generating a photographing ready signal when said release operating member is depressed by a first amount, a first photographing start signal when said release operating member is depressed up to a second amount exceeding the first amount, and a second photographing start signal when said release operating member is depressed up to a third amount exceeding the second amount; measuring means including at least one of a photometering circuit and a distance measuring circuit for measuring a luminance of and a distance to an object to the photographed upon receiving the photograping ready signal from said signal generating means; control means for enabling the first photographing start signal from said signal generating means in at least one of a case where the luminance of said object which is measured by said measuring means exceeds a predetermined value and a case where said camera is focusable on said object, and for disabling the first photographing start signal and enabling the second photographing start signal from said signal generating means in at least one of a case where the luminance of said object is less than or equal to the predetermined value and a case where said camera is not focusable on said object where said camera is not focusable on said object; and exposing means for operating upon receiving one of the first and second photographing start signals enabled by said control means.