Image pickup apparatus

An image pickup apparatus, comprising:

• a first imaging sensor comprising pixels each including at least one photoelectric conversion unit and arranged in a two-dimensional array;
• a second imaging sensor comprising pixels arranged in a two-dimensional array, each of the pixels of the second imaging sensor comprising one micro lens, a first photoelectric conversion unit, and a second photoelectric conversion unit;
• a light beam splitting unit arranged to split a flux of light entering an optical system into first and second fluxes of light to be applied to the first imaging sensor and the second imaging sensor respectively;
• a first image processing unit configured to process signals from the pixels of the first imaging sensor, the first image processing unit generating a still image for recording based on signals from the first imaging sensor;
• and
• a second image processing unit configured to process signals from the pixels of the second imaging sensor, the second image processing unit generating, based on signals from the first and second photoelectric conversion units of the second imaging sensor, signals that are usable for focal point detection of a phase difference method, and for generating a moving image for recording.