It's about a year old, recently the viewfinder is really blurry… I tried adjusting the diopter but it doesn't do anything. I'll look at the numbers on the bottom, and they're still blurry. The pictures comes out crisp and beautiful but its hard to see if they're like that before. Any way to fix it? I tried resetting all settings same thing. Automatic focus is on
>>> Nikon D3100 blurry viewfinder, NOT THE DIOPTER?