Imaging apparatus and image capturing method

An imaging apparatus, comprising:

• a first image capturing unit that captures first image data through a first optical system;
• a second image capturing unit that captures second image data through a second optical system;
• a control unit that controls the first and second image capturing units to capture an image;
• a display mode switching unit that switches between (1) a first display mode to display a monitored image of the first image data by the first image capturing unit and (2) a second display mode to display a monitored image of the second image data by the second image capturing unit;
• and
• a battery monitoring unit that monitors a battery remaining amount;
• wherein in a case the battery monitoring unit monitors a battery remaining amount to be less than a threshold value, the display mode switching unit switches from the first display mode to the second display mode.

An image capturing method, comprising:

• a first image capturing that captures first image data through a first optical system;
• a second image capturing that captures second image data through a second optical system;
• a controlling that controls to capture an image by the first and second image capturings;
• a mode switching that switches between (1) a normal mode and (2) a power saving and speedy capturing mode that has a lower consumed power than the normal mode;
• an operation stopping that stops the first image capturing or the second image capturing;
• wherein in case the mode switching sets the power saving and speedy capturing mode, the operation stopping stops the first image capturing and the controls captures an image by use of the second image capturing;
• wherein the first image capturing includes utilizing a first image sensor and the second image capturing includes utilizing second and third image sensors that consume less power than the first image sensor;
• and
• wherein the controlling controls the second and third image sensors to perform a focus operation when operating in the power saving and speedy capturing mode.

An image capturing method, comprising:

• a first image capturing that captures first image data through a first optical system;
• a second image capturing that captures second image data through a second optical system;
• a controlling that controls to capture an image by the first and second image capturings;
• a display mode switching that switches between (1) a first display mode for displaying monitoring image of first image data and (2) a second display mode for displaying monitoring image of second image data;
• a battery monitoring that monitors a battery remaining amount;
• wherein in a case the battery monitoring monitors a battery remaining amount to be less than a threshold value, the display mode switching switches from the first display mode to the second display mode.