The Pentax Optio MX4 uses SD cards as its storage medium. Video can be taken at a resolution up to 640 x 480 at 30 frames per second (fps), and it can also take still images at a decent resolution of four Megapixels, up from the 3.2 Megapixels offered by the first Optio MX. This gives an image resolution of 2,304 x 1.728, which is a significant hike over the one Megapixel still images you'll get from most DV camcorders.



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