By Mark Schubin, June 4, 2007
At last month's National Association of Broadcasters (NAB) convention, a number of cameras drew interest. There were, for example, Grass Valley's new version of Infinity, Hitachi's HV-HD30, the i-movix SprintCam BC, Panasonic's AG-HSC1U, the Red One, and Sony's XDCAM EX. The AG-HSC1U uses 1/4-inch-format imagers, the HV-HD30 1/3-inch, XDCAM EX 1/2-inch, Infinity
2/3-inch, SprintCam about 1.5-inch, and the Red One a 35-mm movie-frame format, the biggest of them all. But does the format size make a difference in image quality?
Many factors contribute to image quality, and most of them have little or nothing to do with imager size
. One of the longest waiting lines at NAB was to enter the Red Digital Cinema theater to see the results of a "camera test" shot in New Zealand two-and-a-half weeks before the show. It seems that every viewer found the results stunning, and many said it was the closest they had seen any electronically shot sequence come to traditional 35-mm movie quality, but that wasn't necessarily because of the camera or its imager.
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