Archived posting to the Leica Users Group, 1998/06/05

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Subject: Re: [Leica] Leica Nomenclature
From: Dan Cardish <dcardish@microtec.net>
Date: Fri, 05 Jun 1998 19:00:32 -0400
 
At 03:46 PM 05-06-98 -0800, Charlie wrote:
>
>>and what does "APO" mean ?
>
>APO is short for apochromatic which should mean that a point of white light
>entering the lens is focussed on the film as a point of white light and not
>a point of white light with colored edges where the light has been bent
>differently according to its frequency.

Ah, but it doesn't actually answer the question, "what does APO mean?"  I
would like to know this as well.

Dan C.