по поводу Никоновского АА-фильтра...
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Nikon has patented a technology that can electronically adjust a camera's low-pass (AA) filter based on the situation. By using a liquid crystal panel, the AA filter can either be turned on and off, or set to 'normal' or 'high' intensity. The first design could allow for a digital SLR to have its AA filter turned off at the press of the button. The second design would have a mild anti-aliasing effect for stills, and a stronger effect to eliminate moire; in movies. The company suggests still more could be achieved by mounting two such filters back-to-back.
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