i made an earlier post but it was a little confusing. my current problem is.. i have the d300, using two lenses that both have an aperature ring. the first lense is a nikon 50mm f1.8, the second lens in the sigma 105mm f2.8 macro. Both lenses have autofocus. now i go into enter non cpu lens data and input all the figures correctly, and attach the lens and select it with my function button, but when i move the aperature ring it reads F-EE on the camera unless the aperature is at its minimum which is like f32, so i am unable to use the aperature ring on these lenses. is there something different i should be doing or am i unable to use the non cpu lens option for these lenses? any suggestions would help!