1. A method of capturing an image with an electronic camera having a shutter for selectively allowing light to reach an image sensor and readout circuitry for selectively reading out pixel data from the image sensor, the method comprising: capturing at least three successive exposures of a single image with the image sensor during a period while the shutter remains open; reading out data from the at least three successive exposures; and combining the data from the at least three exposures to yield high dynamic range image data.