| 主权项 |
1. An image capturing apparatus comprising:
an image sensor that includes a plurality of pixels, each including a plurality of photoelectric conversion elements, and is capable of separately reading out signals by divided portions of the plurality of photoelectric conversion elements; a readout unit configured to read out a signal from a portion of the photoelectric conversion elements of each pixel as a first signal and read out a sum of signals from the plurality of photoelectric conversion elements of each pixel as an image signal; a generation unit configured to generate a second signal for each pixel, using the image signal and the first signal; and a calculation unit configured to calculate a moving amount of a focus lens included in an imaging lens for achieving an in-focus state, based on a phase difference between the first signal and the second signal, wherein the calculation unit performs the calculation without using a signal from a defective line that includes a pixel that cannot generate the second signal using the image signal and the first signal. |
