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Re: [OM] Pentax K Mount Adapters

Subject: Re: [OM] Pentax K Mount Adapters
From: Chuck Norcutt <chucknorcutt@xxxxxxxxxxxxxxxx>
Date: Fri, 23 Sep 2011 16:34:34 -0400
Glad to hear it was so easy.

Chuck Norcutt

On 9/23/2011 2:35 PM, Chris Trask wrote:
>>
>>>       The item is part of a ring that holds the aperture actuator ring in
>>> place.  I'm going to play it safe and ask the repair tech at the local
>>> camera shop to loosen the four screws holding it in place for me.
> They're
>>> JIA style Philips head, they're very tight, and I don't want to strip
> them.
>>> Then I'll mount the part on the end mill rotary table and VERY carfully
>>> remove most if not all of the offending item.
>>>
>>
>
>> I think I'd only take off the offending 2mm and only over the arc
>> required.  It was put there for a purpose and I'll bet there's a good
>> chance it will still serve the same purpose after minimalist surgery.
>>
>
>      The repair tech got the three JIS screws out, said that they were very
> tight.  Getting the ring out I noticed that something similar to loctite was
> used, which explains why the screws were exceptionally tight.
>
>      He confirmed that the sole purpose of that extra metal is to protect the
> aperture actuator arm, and he suggested removing it entirely, using nothing
> more than sandpaper.
>
>      Not to my complete surprise, he recognized the lens almost immediately.
> I think he enjoys seeing this older equipment.
>
> Chris
>
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