Alright so I've got this group of pixels, and they look like a smudge. But the thing is, I've tried cleaning it many times, even with Lens Cleaner + a Lint-Free cloth, but nothing worked. Here's what is looks like; Perhaps you guys could help me figure out what it is, and how I could fix it:
http://oi57.tinypic.com/dvsnd4.jpg
http://oi57.tinypic.com/dvsnd4.jpg