Canon Lens Dirt.
June 24, 2009 2:09 AM Subscribe
CanonFilter: It appears I have dirt inside the my Canon 28-135mm lens... Rather, it looks to me like it's on the inner optics, and not the prime lens...
posted by disillusioned to Sports, Hobbies, & Recreation (6 answers total) 1 user marked this as a favorite
I was cleaning my UV filter which has been on the lens ever since I bought it, a year ago, and noticed that some specks seemed to still remain. I removed the filter and looked carefully at the prime lens, but I've never touched it and, frankly, the cloth I was using to clean the filter wasn't aces, so I wasn't about to touch my actual lens with it.
There appeared to be no dirt or dust on the lens itself, but two or three specks were visible on the moving piece of glass beneath the prime lens... which was, to the best of my ability to determine, not an optical illusion, though I could be wrong.
Is it at all possible there's dirty on the inner optics? I also pulled the lens off and looked at the back, but couldn't see anything there at all. The specks seem to bend and fit the inner lens when I move it... so how do I clean it? Do I care?
Some of my pictures at 28mm show dirt specks, but I think that was just the obvious stuff that was on the filter. I haven't shot again since cleaning...
Do I need to worry or care at all? It's my only lens for my XTi, but still, it bothers me... I imagine about the only thing I could do is send it in for repair, so I guess my question is this: is it at all likely or even possible for there to be dirt on the inner optics, or am I just being tricked?