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Re: [OM] 2X-A and Zuiko surgery

Subject: Re: [OM] 2X-A and Zuiko surgery
From: "O.C" <oben@xxxxxxxxx>
Date: Fri, 20 Jul 2001 10:15:17 +1000

The protuberances are present on the 28/2.8 and other wide angles I have owned that have a protruding or convex rear element. I think they are as p.j notes to protect the rear element and they prevent mounting of the wides on the 2xA. The 50's have them also.

At 08:29 AM Friday 20/07/2001, you wrote:
I always thought the 'protuberances' were to protect the rear element if
someone rests the lens front element up.  If the rear element does not stick
out that far at any setting (check focusing at infinity or close-focused),
then they may be there to protect the aperture coupling tabs (newer
design?).

...just a thought
--p.j.



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Dr. Oben O. Candemir MBBS Syd Uni.



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