#3. "RE: AF-S 55-300 lens on D3100 "lens not attached" message" In response to In response to 2
thanks for the advice. I made sure that I heard the soft-click to make sure I had positive engagement on the lens. still same message. I tried cleaning the contacts with a q-tip and made sure that each ball/target was not depressed (spring loaded). still couldn't get it to work. I put an old lens on the camera body and it recognized it no problem. Assuming it's a problem with the lens. I plan on returning it for another unit.