Imaging apparatus including a first imaging system and a second imaging system

An imaging apparatus comprising:

• an output unit including a first output unit being a display unit configured to display images, and a second output unit configured to record or transmit images;
• a first imaging system including a first lens and a first imaging device configured to generate a first captured image;
• a second imaging system including a second lens and a second imaging device configured to generate a second captured image;
• an imaging unit including the first and second imaging systems;
• an image combining unit configured to combine at least parts from the first and second captured images in order to generate a combined image;
• a housing including said imaging unit and said display unit;
• a detecting unit configured to detect whether the housing is set in a horizontal direction or a vertical direction as a state of the imaging apparatus;
• and
• a control unit configured to control a size of an output image output by said output unit on the basis of said detected state, wherein
• the control unit is configured to switch, on the basis of the detected state, a compound-eye imaging operation performed by using the plural imaging devices and a single-eye imaging operation performed by using the first imaging device, and
• the control unit is configured to determine that, when the single-eye imaging operation is switched to the compound-eye imaging operation, a clock of a predetermined frequency is used for the compound-eye imaging operation and, when the compound-eye imaging operation is switched to the single-eye imaging operation, a clock of a frequency lower than the predetermined frequency is used for the single-eye imaging operation.