Almost all digital cameras employ an optical low-pass filter over their sensors to slightly blur the image at a pixel level in order to avoid moiré patterning. This gives more usable images for general photography (moiré is annoying and can be time-consuming to correct) but comes at the expense of a slight decrease in critical sharpness. Removing the effect of this filter, as Nikon has done in the D800E, should result in higher resolution. Although the difference might not be critical to the average enthusiast, it could be of major importance to studio and landscape professionals (many of whom will be used to working with medium format cameras, which likewise don't use OLPFs).
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發表於 2012-2-7 13:55
