1. An electronic camera comprising: two or more distinct image sensor arrays, comprising at least one low resolution image sensor array having a high dynamic range, and at least one high resolution image sensor array having a normal dynamic range smaller than the high dynamic range, such that the image sensor array having the high dynamic range is configured to capture a wider range of light intensity than the image sensor array having the normal dynamic range; a shutter for selectively allowing light to reach the two or more image sensor arrays; readout circuitry for selectively reading out pixel data from the image sensor arrays; and, a controller configured to control the shutter and the readout circuitry, the controller comprising a processor and a memory having computer-readable code embodied therein which, when executed by the processor, causes the controller to: open the shutter for an image capture period to allow the two or more image sensor arrays to capture pixel data; and, read out pixel data from the two or more image sensor arrays wherein the computer-readable code, when executed by the processor, causes the controller to store the pixel data read out from the two or more image sensor arrays in a high dynamic range image data structure which specifies pixel brightness values using more than 8-bits per color.