Archived posting to the Leica Users Group, 1998/01/12

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Subject: Re: [Leica] Apo Lenses for the M6
From: Nick Hunter <nhunter1@mindspring.com>
Date: Tue, 13 Jan 1998 00:27:42 -0500 (EST)
 
I've heard before that it's the long lenses that suffer most from chromatic
aberration and therefore apo correction is beneficial. Maybe the higher
magnification of macro range has similar optical problems, and Leica wanted
similarly high correction?

Nick Hunter

>Does anyone know why there are no apochromatic lenses for the M6
>or is this a stupid question?.
>It may be that at the shorter focal lengths for the M6 lenses the
>color spectrum focusing is coincedent with the focal plane, however
>there is a 100mm apo lens for the r system.
>
>Peter