Image capturing apparatus, control method thereof, and storage medium

An image capturing apparatus comprising:

• an analog amplification circuit configured to amplify one pixel signal by a plurality of types of analog gain;
• a digital amplification circuit configured to amplify the one pixel signal by a plurality of types of digital gain;
• and
• at least one processor or circuit configured to function as:
• a control unit configured to perform control so as to, in a case where a target gain is obtainable with only analog gain, perform first control for amplifying the pixel signal by a first gain and a second gain with the analog amplification circuit, and, in a case where the target gain is not obtainable with only analog gain, perform second control for amplifying the pixel signal by the first gain and the second gain, using the analog amplification circuit and the digital amplification circuit,
• wherein the control unit, in the second control, maintains an analog gain ratio of the analog amplification circuit in the first control.