    
M_currie
Tinkerer
Username: M_currie
Post Number: 176
Registered: 07-2006
Rating: N/A
Votes: 0 (Vote!) | | Posted on Tuesday, May 05, 2009 - 05:45 pm: | 
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Look to see if the lens has been over-rotated counter-clockwise. There is a tiny screw in the bayonet mount of a Nikon lens that prevents the lens from being rotated past the locked position. If that screw falls out, it can over-rotate, jam, and also damage the aperture control lever. Getting it off again can be a bit of a problem, depending on whether the aperture actuator on the lens has passed over the camera's control lever. That will prevent it from being removed in the correct direction again, and you may, instead, have to continue rotating it counter-clockwise to get it off.
If this is the problem, once the lens is off you'll have to carefully bend back the aperture lever in the camera.
This whole operation is not for the faint of heart, so you might consider taking it to a repair shop if there's one around.
Nikon owners should go through their lens collection from time to time and check the tiny little screw in every mount for tightness. I've had this happen twice in 30 or so years - not a frequent occurrence, but a nasty one when it does happen! |
