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04-12-2019, 09:25 AM   #1
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Join Date: Apr 2019
Posts: 7
Problem with SMC Pentax-A 645 Zoom 1:4.5 80-160

Hello,

I received the lens in mint condition as a used one from Japan. The lens looks perfect but I could not turn the zoom ring since its fixed at the 120mm position. I also have not found a switch at the side of the lens to release the zoom
function and I wonder what needs to be done to unlock the zoom. I want to use this fine lens with an adapter on my FUJI GFX and hope that somebody experienced with that type of lens could provide some help?

Thanks in advance

Stefan

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04-20-2019, 01:29 PM   #2
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Join Date: Oct 2018
Location: Quebec City, Quebec
Posts: 2,114
There is no locking mechanism on the zoom ring. It should turn freely. Try to unstick it gently, otherwise have it inspected by a reputable repairman. These lenses are very well-built and should last a lifetime. Surprising how cheaply you can buy these very sharp and useful lenses second-hand on eBay.

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