The D7100's 24.1-megapixel DX-format CMOS sensor without using an optical low pass filter (OLPF), resulting in the purest, sharpest images using D7100's DX-format CMOS sensor. Combine that with fantastic ISO performance at both ends of the spectrum—down to ISO 100 and up to ISO 6400—the processing speed and intelligence of EXPEED 3 and the extra lens reach of a 1.3x crop factor, and the D7100 is the ultimate tool for those seeking a lightweight DX-format HD-SLR. The D600 has been archieved. For an FX option, the D610 or D750 would be great choices as well for astronomy photography. D610's 24.3 megapixel FX-format CMOS sensor, wide dynamic range and high S/N (signal-to-noise) ratio captures every detail with lifelike sharpness and low noise throughout its wide ISO range. Low-light performance is synonymous with Nikon—shoot crystal clear images from ISO 100 to 6400, expandable down to 50 and up to 25,600 for extreme situations. EXPEED 3 processing system manages all that data with remarkable speed and accuracy, enabling up to 6 fps continuous shooting at full resolution in both FX and DX formats. Here is a good article from Learn and Explore that talks about shooting the Night Sky: http://www.nikonusa.com/en/Learn-An...
answered 3 months, 1 week ago
3 months, 1 week ago