



The IQ 250 costs $34,990 - a high price but still short of the $36,990 60-megapixel IQ260, the $44,990 IQ260 Achromatic that shoots only black-and-white images, or the $43,990 IQ280. That approach can be convenient when a photographer wants to move to a new image sensor but doesn't want to pay for a new camera body, too.Medium-format cameras are generally for dedicated professionals with big budgets. However, its 14-stop dynamic range is a notch better than IQ280's 13-stop range, and Sony has been doing a good job with sensors it's supplied to Nikon and itself.Phase One's core products are digital backs, a module with a sensor housing, touch screen, CompactFlash slot, and USB 3.0 port that can be mounted onto a separate camera body. And it only captures 14 bits per pixel data, compared to 16 bits per pixel for the IQ280 and IQ260.
