MULTISPOT AUTOMATIC FOCUS DETECTING DEVICE

摘要

PROBLEM TO BE SOLVED: To provide a multispot focus detecting device which suppresses an increase in memory capacity needed for sensor system unevenness correction even when the number of focus detection areas is increased. SOLUTION: The multispot focus detecting device which has focus detection areas distributed at the center part and peripheral part of a focus detection picture plane is equipped with a focus detection sensor which has multiple pixels and photodetects a couple of optical images formed by a focus detection optical system, a correcting means which corrects variance of the focus detection sensor output when a uniform luminance plane is observed, and a memory means which stores correction data that the correcting means refers to when corrected; and the correcting means has different correcting modes between the center part and peripheral part of the focus detection picture plane.