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07-25-2018, 05:29 PM   #1
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Pentax DA 55-300mm Lens Auto Focus Issue

Hi, I just acquired a DA 55-300mm lens for less than $30. The lens is in excellent condition except the auto focus doesn't work. I took a small screw driver and tried to manually turn the drive screw. It seems to be jammed. The manual focus works ok ( a little stiff ). How hard is it do disassemble this lens? Should I try to fix it myself or send it for repair. I'm pretty handy and have small screwdrivers and such. Thanks, Jim

07-25-2018, 06:04 PM   #2
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that may have been the reason for the low price - was it sold to you as a working lens?
07-25-2018, 06:40 PM   #3
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I wouldn't want to take apart a digital zoom lens. It pretty hard to take apart film prime lenses! Best of luck if you decide to do the surgery! Let us know how it goes!
07-25-2018, 09:12 PM - 1 Like   #4
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QuoteOriginally posted by pepperberry farm Quote
that may have been the reason for the low price - was it sold to you as a working lens?
No. It was sold as parts or repair.

07-26-2018, 02:27 AM   #5
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55-300 is fairly large lens. Biggest issue for me was putting together shims and electric contacts.

Everything else wasn't too difficult.

At $30 I would attempt repair myself :-)
07-26-2018, 06:37 AM   #6
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QuoteOriginally posted by Oldseabee Quote
Hi, I just acquired a DA 55-300mm lens for less than $30.
Was it the one on Seattle Goodwill? You could try Eric,I know he does some work on AF lenses.Don't know about parts though.

Here's his link Home-Pentaxs
07-26-2018, 06:52 AM   #7
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Yes it was. There's now an 80-200mm at the Olympic/Rainer Goodwill.
07-27-2018, 06:16 AM - 1 Like   #8
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An update, I took the mount ring off to see if I could access the focus screw. Decide it was be on my expertise. When I was putting the first focus screw back in ( the one that hooks to the camera ) I discovered that my fingers are too fat and stiff and it slipped and I lost most of the tiny bearings. Fortunately that's all that I lost. I'll be send it to Advanced Photo in Beaverton, Or. I've had work done by them before and was very pleased. More later. Jim

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