Brian in Whitby wrote:
Another factor is exposure, if your image is under exposed, and then lightened in PP, the grain will appear like magic.
This is another case when,"Expose to the right." is good advice.
:thumbup: Until I recently got my D7000, my D200 was my primary. Talk about grain. Anything beyond ISO 400 looked like a sand sculpture. I'm still getting used to being able to raise the ISO to 800+, it opens up a whole new world of options. I was the first one to yank the chains of people that were constantly upgrading. Once my backup D70 started having issues, I HAD to get a back up for weddings. Now, I am looking forward to another D7000 as a back up. GREAT camera.
That being said, Brian has it correct, when you have a camera that doesn't do well in low light, the absolute worst thing you can do is under expose. When in doubt, over expose a bit in RAW and then recover the highlights.