Patent ID: 7907206

Claim:
An image pickup apparatus comprising: an image pickup element that converts an optical object image incident thereon into an electric image signal to output it; a shutter apparatus having a screen for shielding an exposure aperture for the image pickup element; a reset circuit for reset scanning the image pickup element on a predetermined unit-batch-by-unit-batch basis sequentially in a running direction of the screen; a plurality of detection portions disposed at different positions in the running direction of the screen for detecting passing of the screen after start of running of the screen for shielding the exposure aperture and before beginning of blocking of light from entering the exposure aperture, wherein the plurality of detection portions are disposed at positions where the plurality of detection portions do not face the screen before the screen starts running for shielding the exposure aperture; and a control circuit that estimates a running characteristic of the screen during running based on a detection result by the plurality of detection portions and controls reset scanning by the reset circuit in conformity with the estimated running characteristic.