JP2010004489A5 - - Google Patents

Claims (6)

An imaging device that pre-flashes before the flash is fully fired,
An image sensor having a plurality of photoelectric conversion elements arranged two-dimensionally;
Image data obtained by imaging by the imaging device the flash first luminance information is luminance information of the image data obtained by imaging by the imaging device the flash pre-fires without preflash based on the second luminance information is luminance information, divides the image pickup element into a plurality of divided regions, and the exposure time calculation means for calculating the exposure time for each of the divided regions,
As the exposure end timing of the previous SL plurality of divided regions are the same, on the basis of the exposure time for each of the divided regions which are calculated by the exposure time calculation means, varying the exposure start timing for each of the plurality of divided areas and exposure light control means,
Imaging apparatus characterized by having a.   When the difference between the first luminance information and the second luminance information is greater than or equal to a preset threshold value, the exposure time calculation unit divides the imaging device into a plurality of divided regions, The imaging apparatus according to claim 1, wherein an exposure time is calculated.   Based on the first and second luminance information, from among the plurality of divided regions, a divided region to which the flash light of the flash reaches is determined, and exposure of the divided region determined to reach has started. The imaging apparatus according to claim 1, further comprising a light emission control unit that causes the flash to emit light. Further comprising a light shielding means for shielding said image pickup device,
Before SL imaging apparatus according to any one of claims 1 to 3, characterized in that to terminate the exposure of the plurality of divided regions by shielding the image pickup device by the light shielding means. The imaging device, the imaging device according to any one of claims 1 to 4, characterized in that an XY address type image sensor. A method for controlling an image pickup apparatus having an image pickup element having a plurality of photoelectric conversion elements arranged in two dimensions, which emits a pre-light before a main flash is emitted
Exposure time calculation means, captured by the imaging element the first luminance information the flash pre-fires the luminance information of the image data obtained by imaging by the imaging device the flash without preflash An exposure time calculation step of calculating a pre-exposure time based on the second luminance information that is the luminance information of the image data obtained in the above ,
The exposure control means sets the exposure start timing based on the exposure time of each divided area calculated in the exposure time calculating step so that the exposure end timings of the plurality of divided areas are the same. and exposure light control step of bringing different for each,
A method for controlling an imaging apparatus, comprising :