Hi everyone, I did a search but nothing relevant came up. I just bought a brand new D300 last saturday (yay!). When I brought it home and used it for a few days the viewfinder was clear. Yesterday, something that appears to look line a fine hair has appeared in my viewfinder and it's not going away. Oddly, when I was at the camera store playing with the demo, it also had the same type of fine hair wiggly thing in the viewfinder(but in a different place). I just ignored it because it was a demo. BUT NOW THIS HAIR IS ON MY BRAND NEW UNIT AND I DON'T LIKE IT!! I've maybe changed lens on this unit five times in a clean atmosphere. It's six days old. I've also noticed a lot of low ISO noise between 200 and 400(especially in areas like clear blue sky). I'm using lightroom2 for development and have to bump the noise slider to 100% to remove it. Is something wrong with my camera?