Old 07-07-2008, 12:44 AM   #1
Tgranville
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Default Autofocus issues on my Nikon. HELP!

I was out today doing some non-railroad photography when i noticed that my 55-200 lens on my D40X wasn't functioning properly. i tried my wide angle and it worked fine. when i go to use the zoom lens, and i try to focus, it makes a squeak and just constantly tries to focus. What could be the issue?

Ive tried:

Taking lens off and reattaching
Cleaning sensors
(in process of) recharging battery - hoping maybe the low battery power might have caused the issue.

Is there anything else anyone can think of? Supposed to go to railfest this weekend in Altoona, but without my zoom lens, i am gonna be up a creek without a paddle.

Thank you in advance

Tom
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Old 07-07-2008, 01:03 AM   #2
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Did you try manually doing it? and off camera, can you try a different one and see if its not the body? is it under warranty still? is it a Nikon? if you can go to a real camera store, not best buy. most will bend over to help you out.
Edit if its the kit lens you may just buy a new one as the cost to fix is going to be as high as a new one ? you will want to know how much they sell for before fixing it. may be time to move up to better glass?
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Old 07-07-2008, 01:32 AM   #3
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Quote:
Originally Posted by milwman
Edit if its the kit lens you may just buy a new one as the cost to fix is going to be as high as a new one
He said it's his 55-200. That's not a kit lens.
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Old 07-07-2008, 01:38 AM   #4
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The gears might have gotten out of sync. It happened to my less than one-month old Pentax lens. Forum member Glenn Davis fixed it with a few good lower palm thumps to the underside of the lens, and I haven't had a problem with it since, and that was almost a year ago. It's worth a shot and doesn't damage the lens.
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Old 07-07-2008, 01:43 AM   #5
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It was a kit lens. The manual focus works fine on it. My 18-55 lens works fine on it.

The odd thing is that is was working fine most of the day then it went all haywire on me.

Maybe it is time to step up to a better lens.
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Old 07-07-2008, 02:26 AM   #6
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My Canon kit lens started doing that at wide angle. When I took it to the camera store they just shook their head and said, sorry, time for a new lens.

Hope your situation is better than mine... but if you have a major trip planned, rent or borrow the lens you need. Don't go without.
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Old 07-07-2008, 10:59 AM   #7
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Quote:
Originally Posted by Tgranville
It was a kit lens. The manual focus works fine on it. My 18-55 lens works fine on it.

Maybe it is time to step up to a better lens.
They don't cost to much, made cheeper so they can sell low but wont last as long. Same for all brands. Best to get one that will last over cheep, as a good one will out last the body's.
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Old 07-07-2008, 03:53 PM   #8
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Well,

I called the place where i bought the camera. They said that it will be cheaper and quicker to buy a new lens. They said if i still have the box for the lens, i can exchange it and upgrade to the same lens with VR for 50 bucks. Man, i hope i saved it. If not, it will be around 200 for the lens. So by tomorrow, ill have a new lens.
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Old 07-07-2008, 07:12 PM   #9
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Could it be a dirty contact issue? I had an "over exposure" problem with my 55-200. Used the same settings with the 18-55 and it was fine. Took an alcohol prep and cleaned the contacts of the lense and haven't had a problem since. Just make sure to remove any fuzzies left from the cotton ball/prep/swab when done.
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Old 07-07-2008, 07:51 PM   #10
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That was the first thing i tried.

Im thinking its a lost cause. Time to go to the camera store and get a new lens.
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Old 07-08-2008, 12:13 AM   #11
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My suggestion is to get Canon gear!

Nah, I had the same problem with a lens years ago and it was the gears in the autofocus. Good luck with a new lens!

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Old 07-08-2008, 12:26 AM   #12
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Get the 80-200.
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