mcsphoto

<p>I have an old (18 year old) Nikon AF Nikkor 50mm 1.4 lens. It does not have a G or a D on the barrel. Everything I read says this lens should be compatible with my D80 but I keep getting an error message and the shutter becomes disabled. I have it set on manual focus and open to 5.6 (I've tried setting it on A, S, and P as well). What am I doing wrong???</p>

I have had this lens for 2 months now and just yesterday experienced the same problems. I thought moisture got into the lens and caused the problem. I was shooting pics inside the Botanic Gardens and the mist sprayers went on. The camera was misted a bit but it was in no way drenched with water. After that, the lens started squeaking and would not auto focus when zoomed. It just kept going in and out and squeaking, almost grinding. No problem auto focusing at wider angles but it still squeaks. Unfortunately, I bought this camera at an on-line photo shop. I guess I'll have to return it directly to Nikon. Seems like a serious quality issue.