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Do you have more than one lens? If so, does this problem appear with other lenses?
Let me know.
Ok. Remove the lens. If you look at the part of the lens that mates with the body of the camera, there will be a small lever. This is what closes the iris of the lens when you snap a photo. Does that lever move freely?(The site is sending you the phone call requests - not me. Sorry about that).
Excellent. Sometimes that lever can get gummed up. Keep it clean with rubbing alcohol on a q-tip.
I'm glad we got it fixed.Please be sure to rate the service you received today. It's like an Amazon rating that appears next to my profile.Thanks very much.Steve