im having a small problem i noticed i have a spot on my photos like a smeere now ive looked and looked for dust ...ect any ideas of how to get rid of it,or where it might be ive tried cleaning everything i thought.
Are we talking about the grotesquely large white ring thing (which in this case is so horrible I would send the camera in IMMEDIATELY) or are we asking about THE MOON?
Pecpad/Eclipse would probably do the trick, but that "smudge" is the largest sensor contamination I've ever seen. I would strongly consider sending that into Canon or an authorized repair center for a professional cleaning.