Originally posted by Astronomersmith [/COLOR]Now that you have given me a good lesson about my camera and its capabilities, I want to ask, does it make much of a difference? I mean, with NR on compared to NR off?
I know I'm going to try it out myself first chance I get, but I wanted to get your opinions too. Thanks again for the help!
Scott
It can make an significant difference, more so on older generation sensors, so only turn it off when you have no other option.
CCD sensors can get quite hot during long exposures, which can show as mis-colored areas on the image. And a lot of hot pixels can show up during long exposures.
Check the sample on this page where half of the image have NR applied (zoom in on the image).
Dark-frame subtraction - Wikipedia, the free encyclopedia