Image sensor and image capturing apparatus

An image capturing apparatus comprising:

• an image sensor,
• an image processor that processes signals output from the image sensor and generates an image;
• and
• a focus detector that processes read signals and performs focus detection,
• wherein the image sensor includes
• a pixel portion in which a plurality of unit pixels each having one micro lens and a plurality of photoelectric conversion portions are arrayed in a matrix
• an image capture signal processor that performs signal processing, for generating a captured image on signals output from the unit pixels of the pixel portion;
• and
• a focus detection signal processor that performs signal processing for focus detection on signals output from the unit pixels of the pixel portion;
• an output portion that outputs signals processed by the image capture signal processor or the focus detection signal processor outside of the image sensor;
• and
• a controller that controls signal processing of the image capture signal processor and the focus detection signal processor.

An image sensor comprising:

• a pixel portion in which a plurality of pixels that photoelectrically convert light from a subject are disposed;
• a subject detection portion that detects a subject area in which a subject image exists in the pixel portion;
• and
• an output portion that outputs signals of the pixels of an entire area of the pixel portion to outside of the image sensor for generating an image, and outputs the signals of the pixels of the subject area of the pixel portion which was detected by the subject detection portion to outside of the image sensor for calculating an evaluation value.

An image sensor, comprising:

• a pixel portion in which a plurality of pixels that photoelectrically convert light from a subject are disposed;
• a light metering portion that calculates a light metering evaluation value using signals of the pixels of a partial area of the pixel portion;
• and
• an output portion that outputs the signals of the pixels of an entire area of the pixel portion to outside of the image sensor for generating an image, and outputs the light metering evaluation value to outside of the image sensor for performing automatic exposure control.