It wasn't that long ago that photography went through the major transition from chemical film-based emulsion to digital cameras. I remember well an editor of a computer magazine who would regularly pontificate about how ridiculous it was that anyone thought digital cameras would ever match the quality of film. He'd quote numbers that compared the sizes of pixels to film grains,highlighting the various shortcomings of digital cameras at the time, and to some degree he was right. What he didn't foresee is how quickly these shortcomings would be overcome. This is a cautionary tale, of course, to anyone watching the current transition from CCD-based image sensors to CMOS, a transition that's in full bloom for the astronomical imaging community.
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