Imaging apparatus

摘要

An imaging apparatus includes an image sensor including a first pixel group used for generating an image signal by photoelectrically converting an object image and a second pixel group configured to receive a light flux that has passed through divided areas of the exit pupil, a memory unit configured to store information about whether a defective pixel exists in any pixel included in the second pixel group, a control unit configured to execute calculation including combination processing on output signals of the second pixel group existing in a predetermined area, and a controller configured to control a shooting operation according to a result of the calculation by the calculation unit. The calculation unit is configured, if a defective pixel whose information is stored on the memory unit exists in the combination processing, to execute the calculation by using the output signals of the second pixel group.

主权项

1. An imaging apparatus configured to capture an image of an object comprising:
an image sensor including a first pixel group used for generating an image signal by photoelectrically converting an object image that has passed through an exit pupil of a photographic optical system and a second pixel group including a plurality of first focus detection pixels and a plurality of second focus detection pixels, and that has a plurality of focus detection pixel pairs each including a first focus detection pixel and a second focus detection pixel, the first focus detection pixel receiving a light beam that passes through a first pupil area of the photographic optical system that forms an object image and the second focus detection pixel receiving a light beam that passes through a second pupil area of the photographic optical system that forms an object image; a memory unit configured to store information about a position of a defective pixel in the second pixel group; an eliminating unit that eliminates a value of the defective pixel indicated by the information and a value of one of the first focus detection pixel and the second focus detection pixel that forms the focus detection pixel pair with the defective pixel, the first focus detection pixel or the second focus detection pixel that is a pair of the defective pixel is not a defective pixel, so as not to use the eliminated values for detecting the focusing status; a focus adjusting unit that adjusts a focal state of the photographic optical system based on an amount of defocus determined by an amount of relative displacement between a first signal and a second signal obtained as a result of the elimination by the eliminating unit; and a controller configured to control a shooting operation executed by the imaging apparatus.