I have a fairly new Nikon D7000 (I've taken about 2000 pictures).
Something happened during my last trip, where thew viewfinder never gets sharp anymore. It always looks out of focus, regardless if i am in manual or automatic mode.
Pictures still come out sharp, and when I switch to the LCD screen I can see the focus, but not in the viewfinder.
Is there some sort of tuning that needs to be done?