I do not doubt this has been asked before but in my attempt to search the forums it proved fruitless. Anyway, i'm stumped, and slightly irritated. I noticed today on one of my shots black specs in my photos, shot at f/32. So I promptly grabbed my camera and brightened up the lights and shot two shots on a white wall. at f/5.6 I saw no specs at all. on f/32... I could see them on the LCD screen... Dirty objective lens? (It is a zoom lens). Quantaray AF LD 70-300 Zoom Lens. I cleaned the front of the lens but I thought these particals wouldn't be in the focus plane? I've been told that there is dust on the inside of the lens, and that just about all lenses will gather dust in the lens as you work the zoom in and out. Any help here? Or is this perhaps the cost of cheap lenses.