Archived posting to the Leica Users Group, 1998/04/07

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Subject: Re: [Leica] Matching Film to Lens Contrast
From: Dan Cardish <dcardish@microtec.net>
Date: Tue, 07 Apr 1998 16:18:23 -0400

At 04:15 PM 07-04-98 EDT, Marvin wrote:
> I can't speak for Eric either but I do think that his rational view would be
> the same as mine - in saying "why not just use a film that complements
> the lens".
>
> We all know that for MOST photos, hi contrast film or paper is bad as it
> compresses the tonal range but I can't conceive of a lens of "too high in
> contrast" - even an apochromatic process lenses is designed to capture
> a long as possible range of tones.  It has always been my understanding
> that contrast was one of the features for which lens manufacurers strived.
[snip]

I don't fully understand what is meant by lens contrast.  I always thought
that low contrast in a lens was caused by non image forming flare from
poorly coated lens surfaces or poor baffling of the interior of the lens. 

Dan C.