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02-23-2009, 11:54 PM   #1
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Pentax F 28-80 all stiff

I have this lens here, the zoom ring is quite stiff to turn, and the focus ring is also stiff, so stiff that the camera wont AF (can still MF though)

its not worth much, so im happy to have a go at fixing it. any tips? otherwise the weekend will probably see me with pieces of lens all over my desk

02-24-2009, 12:15 AM   #2
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Did you knock the lens out of AF when you mounted it?
02-24-2009, 12:24 AM   #3
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well the lens doesnt have an AF setting, and the camera was definately in AF as i could hear the motor struggling to turn, which made me stop trying. dont want to burn the AF motor out in my body...
02-24-2009, 10:40 AM   #4
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QuoteOriginally posted by jezza323 Quote
I have this lens here, the zoom ring is quite stiff to turn, and the focus ring is also stiff, so stiff that the camera wont AF (can still MF though)

its not worth much, so im happy to have a go at fixing it. any tips? otherwise the weekend will probably see me with pieces of lens all over my desk
That could get very exciting. Just taking off the mount on one of these zooms can spill out 63 tiny parts that instantly want to explore the outside world. I have had some luck with putting a piece of tape over the aperture contact points before removing the mount, so the contact points stay in place better. My other tip is this:

Pentax AF 28-80mm f/3.5-5.6 Lens - eBay (item 270347311743 end time Feb-24-09 16:39:25 PST)

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