Archived posting to the Leica Users Group, 1996/04/17

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Subject: Re: 100mm/2.8 R APO Macro question
From: Eric Welch <>
Date: Wed, 17 Apr 1996 08:30:17 -0700
Organization: Grants Pass Daily Courier
References: <> <>

Bill Christensen wrote:

> As a footnote, I have also employed the 100mm lens, Elpro plus one or
> two Macro-Adapter-Rs for images closer than 1:1.  It works like a charm
> with a solid tripod and mirror lock-up.  One Leica technical guru
> stated, however, that an increase in the distance between the rear lens
> element of an APO lens and the film plane will diminish image quality.

So that's why Leica says you can't use adapters and bellows. 
Interesting. I thought it was a mechanical thing.
Eric Welch
Grants Pass, OR

In reply to: Message from (Roger L. Beamon) (Re: 100mm/2.8 R APO Macro question)
Message from Bill Christensen <> (Re: 100mm/2.8 R APO Macro question)