Archived posting to the Leica Users Group, 1998/05/11

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Subject: Re: [Leica] Stupid Question Time
From: Eric Welch <>
Date: Mon, 11 May 1998 19:08:33 -0500

At 04:01 PM 5/11/98 -0400, you wrote:

>If the designation APO is a nomenclature to have the three color wavelengths
>all converge why is it desirable to have one for b&w printing?  Obviously I'm

Because the light coming through the lens, and negative, is not black and
white. It's made of colors, so it will help, especially at wider apertures.


Eric Welch
St. Joseph, MO

Some people say that I'm superficial, but that's just on the surface.