Image pickup apparatus simultaneously obtaining visible and invisible light images, control method therefor, and storage medium storing control program therefor

Abstract

An image pickup apparatus includes an image sensor, a memory device, and a processor. The image sensor includes first pixels and second pixels that are arranged two-dimensionally and that respectively receive visible light and invisible light entering through an image pickup optical system. Each of the first pixels and the second pixels has photoelectric conversion elements that receive light beams passing through different pupil areas of the image pickup optical system. The memory device stores instructions. The processor executes the instructions to detect focus detection results from signals output from the first pixels and signals output from the second pixels, determine a lens position of the image pickup optical system based on the focus detection results, and determine an exposure condition of a time of image pickup with the image sensor according to the focus detection results.