Camera having a detection circuit for detecting operational interval T between the half-press operation and full-press operation
The present invention relates to an image capturing device for applying auto-focus processing triggered in response to an operation of half-pressing a shutter button, and initiating image capturing triggered in response to an operation of full-pressing the shutter button. In the image capturing device, an image capturing mode control section detects an operational interval T between the half-pressing operation to the full-pressing operation, and, when the operational interval is longer than a predetermined threshold interval T 0 , selects a focus priority mode in which auto-focus processing is continued and image capturing is initiated after completion of the auto-focus processing, and, when the operational interval T is shorter than the threshold interval T 0 , selects a shutter chance priority mode in which the auto-focus processing is stopped and image capturing is instantly initiated.
1. An image capturing device in which auto-focusing process is initiated by half-pressing of a shutter button, and image capturing process is initiated by full-pressing of a shutter button, comprising:
a detection circuit for detecting an operational interval T between the half-press operation and the full-press operation;
a parameter acquiring circuit which acquires image capturing parameters;
a control circuit for continuing the same auto-focus processing and initiating image capturing after completion of the same auto-focus processing when the operational interval is longer than a predetermined threshold interval T 0 ;
for stopping the same auto-focus processing and initiating instantly image capture when the operational interval is shorter than the threshold interval T 0 , and when the image capturing parameters satisfy predetermined conditions;
and for continuing the same auto-focus processing and initiating image capturing after completion of the same auto-focusing processing when the image capturing parameters fall to satisfy predetermined conditions and when the operational interval is shorter than the threshold interval T 0 .
2. The image capturing device according to claim 1 ,
wherein the image capture parameters include parameters which effect depth of field, and
the predetermined conditions are satisfied when depth of field is greater than a predetermined value.
3. The image capturing device according to claim 2 , wherein the image capture parameters include a focal distance.
4. The image capturing device according to claim 2 , wherein the image capture parameters include an aperture value.
5. The image capturing device according to claim 2 , wherein the image capture parameters include emission of flash light.