Patent ID: 11943544
Assignee: CANON KABUSHIKI KAISHA
Field: Audio-visual technology (Electrical engineering)
Classification: CPC H | IPC H

Claim 24:
25. A method of controlling an image capturing apparatus that includes an image sensor, the method comprising:
detecting flicker that is a periodic change in a light amount of an object;
obtaining a first shutter speed based on a light amount change frequency of the detected flicker as first obtaining, the first shutter speed being based on a reciprocal of the light amount change frequency of the detected flicker;
obtaining a second shutter speed as a candidate for capturing an image of the object with reduced effect of the flicker based on the obtained first shutter speed as second obtaining;
in the first obtaining, if a third shutter speed is set in advance, determining a closer one of shutter speeds to the third shutters peed than the other shutter speeds as the first shutter speed, the shutter speeds being integer multiples of a shutter speed that is the reciprocal of the light amount change frequency of the detected flicker; and
in the second obtaining, selecting one of settable shutter speeds of the image capturing apparatus as the second shutter speed, the selected one of settable shutter speeds having a smaller difference from the first shutter speed than the other shutter speeds.