1. An electronic camera comprising: an image capturing part generating image data by photoelectric conversion; a light shielding mechanism shielding said image capturing part from light; a control part that drives said image capturing part to capture an image of a field and generate image data, and drives said image capturing part shielded from light by said light shielding mechanism to generate blackout image data; and a noise reducing part that reduces fixed pattern noise in the image data according to the blackout image data, wherein for the blackout image data generation, said control part sets an image capturing condition under which a level difference between the fixed pattern noise and random noise increases.