Other tweaks suggested by the report include using the .jpeg image format instead of other file types like .gif and .png.

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Most other image compression systems, such as the widely used Jpeg format, are applied after an image has been snapped.

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The SIGMA DP3 Merrill features a RAW data recording mode for retaining full image capture detail of the utmost quality captured through the direct image sensor, plus a JPEG recording format for convenience.

ENGADGET: Sigma DP3 Merrill packs a Foveon X3 sensor and a fixed F2.8, 75mm-equivalent lens