Imaging apparatus and imaging sensor

An imaging apparatus comprising:

• a pixel region in which a plurality of pixels are arranged and into which light is incident through an imaging lens;
• and
• a controller that controls readout of a pixel signal from the pixel region,
• wherein in the pixel region, phase difference pixels, each of which includes a photoelectric conversion element, and a light blocking layer, which blocks a part of light incident on the photoelectric conversion element, are arranged along a first direction,
• in a case where one side in the first direction is set as a first side and the other side is set as a second side,
• the pixel region includes a first phase difference pixel group including a plurality of the phase difference pixels of which the first side of the photoelectric conversion element is blocked by the light blocking layer in a first side region of the first side, and a second phase difference pixel group including a plurality of the phase difference pixels of which the second side of the photoelectric conversion element is blocked by the light blocking layer, and
• the first phase difference pixel group includes a first A pixel and a first B pixel in which a light blocking area of the photoelectric conversion element using the light blocking layer is smaller than that of the first A pixel, and
• the controller acquires information about a focal length of the imaging lens from the imaging lens and performs addition readout processing in which at least one of a pixel signal of the first A pixel or a pixel signal of the first B pixel is weighted in accordance with the acquired information,
• wherein the controller changes the weight in a case where the focal length is changed during a motion picture capturing.