Hey everyone! I just screwed on a Nikon UV filter on my unused, new 28-105 lens and the mount turned! Then I tried to reverse the filter turn and the mount turned in the other direction too! (This was with camera off, so focus ring was locked.)
Is there a problem?
I called Nikon and one tech guy didn't know anything, so I spoke to another and he said "it doesn't sound normal" but he really didn't sound sure of himself.
I phoned CameraWorld, where I ordered the lens from, and they said I was past the 14 day return/exchange period, so I'd have to send back to Nikon.
-Update: When I called Nikon Tech, they said something to the effect of "Definately have it checked out. The lens alignment is critical for sharp focus but if the barrel is slightly loose, it should probably just be tightened. But definately have it checked out." I have a thread on this somewhere, can't remember where, though, sorry. -
I had a friend who was checking out my camera and had my 28-105 mounted on it. It also had the lens shade bayonetted on. He tried to remove it and over-torqued the shade (he thought it was a screw on) and this loosened the barrel. (Thankfully, I had the camera body on manual focus) I had the camera checked at an authorized repair facility and it was fine. It was dissassembled and put back together as per spec - no damage, and the lens barrel is as tight as it has been (I don't worry about putting on and taking of the lens hood). Images are still sharp and crisp, so the alignment of the lens groups is fine.
I know it's going to hurt (sending away a favorite lens), but send it in for a warranty repair. Assuming you live in the USA you should have the typical one year + the additional 4 year warranty. Call Nikon and follow their instructions. I have never sent anything directly to them so I'm not sure what the procedure is. Good luck!