jim_gifford Posted April 16, 2007 Share Posted April 16, 2007 My D200 may need a trip to the shop. I post this to find out if others have had a similar experience. The motorized screwdriver-like impeller for autofocus lenses appears to be malfunctioning. The symptom is failure to focus, or a *very* slow (several seconds) movement from near focus to infinity focus. The camera makes its normal autofocus motor whirring sound whether it achieves focus or not... so the engine is running, but sometimes it appears stuck in neutral or perhaps the screwdriver is making a poor connection to the female autofocus fitting in the lens. Remounting a lens doesn't cure it. Switching lenses to another of my five or six AF-D Nikkors doesn't cure it. Making sure the battery is fully charged doesn't cure it. Changing from single to continuous AF does not seem to affect the problem at all. Very gentle nudging with a fingertip can rock the impeller back and forth a millimeter or so laterally inside its little cutout in the lens mount on the body, rather like a loose tooth. I'm not sure if that play is normal (only have the one D200 here to check). It is an intermittent fault, alas. I say "alas" because repairs are so much easier when the fault is 100 percent consistent. This one happens sometimes, and then it might go away (leaving the camera and lens autofocusing normally) for a few hours. Then it recurs. Anyone else have a similar experience? Thanks. Be well, Link to comment Share on other sites More sharing options...
bsd230 Posted April 16, 2007 Share Posted April 16, 2007 Sounds like it needs to take a trip to service. I'm sure even if it is intermittent they will be able to root it out. I probably wouldn't go poking around in there too much especially if it is still under warranty. Link to comment Share on other sites More sharing options...
hans_janssen Posted April 17, 2007 Share Posted April 17, 2007 The loose tooth feeling is the right feeling. Link to comment Share on other sites More sharing options...
jim_gifford Posted April 21, 2007 Author Share Posted April 21, 2007 Thanks, gentlemen. Time to find some bubble wrap, and send my camera in for service. -Jim Link to comment Share on other sites More sharing options...
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