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Re: [OM] M42 to OM 4/3 Adapters Revisited Again

Subject: Re: [OM] M42 to OM 4/3 Adapters Revisited Again
From: Chuck Norcutt <chucknorcutt@xxxxxxxxxxxxxxxx>
Date: Mon, 12 Sep 2011 17:48:11 -0400
Watch out for set screws.  I believe there has been more than one person 
on this list who has had an adapter fall apart while in use due to 
loosening set screws.

Chuck Norcutt


On 9/12/2011 5:10 PM, Chris Trask wrote:
>      I am happy to say that I now have an off-the-shelf M42 to OM 4/3 adapter
> that works!
>
>      <<APPLAUSE>>     <<CHEER>>
>
>      This one is 0.265" (6.73mm) thick, and on my Vivitar 55-135mm f/3.5 T4
> lens it allows for focusing just slightly beyond infinity.  Also, the
> threaded portion is attached to the bayonet portion with three set screws,
> so you can adjust the lens position when it is mounted on the camera.  The
> two parts fit together snugly with virtually no play.  The threaded portion
> is made of aluminum, and the bayonet portion is black anodized hard brass,
> so it's a bit on the heavy side.
>
>      This adapter fits the lenses and camera body firmly with no slopiness.
> All that's missing is some way of holding the aperture pin down, and with
> the 45º chamfer at the bottom of the bayonet portion I can easily machine a
> ring that will fit in there and take care of that little problem without
> having to modify the T4 and TX adapters.
>
>      I got this adapter from one of those camera accessory outfits in the Far
> East, and there are a number of sellers with the exact same part such as
> 254224726012, 250644062826, 390204477294, 150642486987, and 250604378717.
>
> Chris
>
>
-- 
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