Image pickup apparatus capable of suppressing time lag until photographing, control method for image pickup apparatus, and storage medium

A control method for an image pickup apparatus that comprises an image sensor configured to include a plurality of pixels and a setting unit configured to set first photographing conditions in accordance with instructions from a user, the control method comprising:

• a detecting step, executed in the image sensor, of detecting a characteristic region based on pixel information obtained from the plurality of pixels;
• and
• a control step, executed in the image sensor, of causing pixels in the characteristic region among the plurality of pixels to be photographed under second photographing conditions different from the first photographing conditions, and causing pixels in another region other than the characteristic region among the plurality of pixels to be photographed under the first photographing conditions.

A non-transitory computer-readable storage medium storing a program for causing a computer to execute a control method for an image pickup apparatus that comprises an image sensor configured to include a plurality of pixels and a setting unit configured to set first photographing conditions in accordance with instructions from a user, the control method comprising:

• a detecting step, executed in the image sensor, of detecting a characteristic region based on pixel information obtained from the plurality of pixels;
• and
• a control step, executed in the image sensor, of causing pixels in the characteristic region among the plurality of pixels to be photographed under second photographing conditions different from the first photographing conditions, and causing pixels in another region other than the characteristic region among the plurality of pixels to be photographed under the first photographing conditions.