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Old 11-04-2009, 03:43 PM
joetc43 joetc43 is offline
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Default nikkor 18-200 autofocus plague

I bought an 18-200 AF-S Nikkor- the do-everything lense. And it is. Or was. Two months on, I started it one afternoon, and the shutter on the 40X I have it on would not trip. (PLEASE- if one more person tells me that the 40 and 40X don't have motors, I'll tweak- I KNOW- the motor is in the lense). After playing and reading and checking for an hour, I tried manually focusing. The shutter immediately tripped. Auto-manual- no matter where I have it, it will no longer autofocus. Tried it on a friends D80. Nothing there either.
Began looking around on-line. It's a plague with these lenses. Autofocus quits, they replace the lens or fix it, and it works for a while, then kaput again. It runs thru this whole line of Nikkors, not just the 18-200. Don't believe me? Try a search- "Nikkor AF-S aufocus problems".
It is now a year on, and I just read that Nikon is bringing out an updated version of the lense I have. Maybe better, maybe not.
Anyone else have this? I can actually hear the motor in the lense running for a few seconds when I hit the shutter in autofocus. The lense doesn't move, and eventually the tiny whine inside the lense stops, and the shutter never trips.
If you're looking for a new lense- beware. These lenses are all that until they stop working. Then you manually focus.
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Old 11-04-2009, 03:47 PM
jcon jcon is offline
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Quote:
Originally Posted by joetc43 View Post
It runs thru this whole line of Nikkors, not just the 18-200. Don't believe me? Try a search- "Nikkor AF-S aufocus problems".
If you're looking for a new lense- beware. These lenses are all that until they stop working. Then you manually focus.
Yeah, sorry... I dont believe you.

As for your issue, has a contact on the lens mount broken off or become bent? If its not auto focusing on other bodies, its got to be the lens, so check the mount contacts first.
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Old 11-04-2009, 03:50 PM
herc182 herc182 is online now
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Quote:
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Yeah, sorry... I dont believe you.

As for your issue, has a contact on the lens mount broken off or become bent? If its not auto focusing on other bodies, its got to be the lens, so check the mount contacts first.
Good point. Worth checking.
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Old 11-04-2009, 03:54 PM
joetc43 joetc43 is offline
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Battery in body, motor in lens. When I hit the shutter, I can hear the motor running. It is getting power, With a broken contact can the motor still run?
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Old 11-04-2009, 04:24 PM
K1W1 K1W1 is offline
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There are electrical contacts between the camera body and the lens, Invariably when this issue comes up a proper cleaning of both sets of contacts resolves the issue. The power contacts are less likely to be affected by dirt or grime than the logic contacts.

As far as your assertion about a "plague" I simply don't believe you. Sure there are some failures nothing is perfect but a plague implies a widespread problem and there is no widespread problem with the 18-200 lens or Nikon AF-S lenses in general.
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Old 11-04-2009, 05:14 PM
Rooz Rooz is offline
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Quote:
Originally Posted by joetc43 View Post
It's a plague with these lenses. Autofocus quits, they replace the lens or fix it, and it works for a while, then kaput again. It runs thru this whole line of Nikkors, not just the 18-200. Don't believe me? Try a search- "Nikkor AF-S aufocus problems".
let me be direct...this is complete and utter bollocks.
have a nice day.
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Old 11-04-2009, 05:44 PM
joetc43 joetc43 is offline
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well, gosh, I stand chastened and humiliated. Hand me my revolver, Neville, I can't go on...
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Old 11-04-2009, 06:09 PM
Rooz Rooz is offline
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I can't go on...
oh please come back. you provided such insightful, factual information.
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  #9  
Old 11-04-2009, 06:24 PM
joetc43 joetc43 is offline
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No, no, it's too late, Besides, your wry and withering smiley face skills leave me shattered...
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Old 11-04-2009, 07:18 PM
K1W1 K1W1 is offline
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I just did a Google search on "Troll" and came up with 17,700,000 hits.When I did a search on "Nikon Troll" the hit rate dropped to 196,000 but "Canon Troll" got me 519,000 hits.

I'm thinking that the plague of Canon Trolls must far outweigh the plague of Nikon Trolls but both pale in insignificance compared to the overall plague of Trolls.
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