Nikon's imminent D800 could offer high-sharpness option
It looks like Nikon's highly anticipated D800, a large-sensor SLR that supplants the three-year-old D700, will cater to photographers who want to leave behind that mixed blessing of digital photography, the antialiasing filter.
The job of that filter is to remove moire artifacts--wavy lines and other visual distractions that can occur when an image sensor's grid of pixels captures an image with repeating elements such as fabric patterns. The antialiasing filter works by slightly blurring the image, which is convenient when moire is a problem but which degrades sharpness in the many situations where it's not. … Read more