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Re: DV100 vs DNxHD vs CFHD

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Jason J RodriguezRe: DV100 vs DNxHD vs CFHD
by on Apr 10, 2005 at 7:00:18 pm

All these cameras have a light low-pass filter in front of the CCD's, even the 100K Cinealta, in order to prevent aliasing. They then use detail circuitry to overcome the "blurring" from the filter, although the filter is very light (in comparsion to a bayer camera), only enough to prevent horrible aliasing beyond Nyquist. Depending on the manufacturer, they'll allow more aliasing than others to get a "sharper" image or higher perceived MTF, while others will filter the image further in DSP to prevent aliasing (I believe that Sony does allow some aliasing to occur, while Panasonic tries to filter as much as possible).

Jason Rodriguez
Virginia Beach, VA


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