Archived posting to the Leica Users Group, 1998/07/19

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Subject: [Leica] definition of terms
From: Erwin Puts <>
Date: Sun, 19 Jul 1998 15:28:00 +0200

>Would someone be so kind as to explain to me in simple words,
>the difference between optical resolution & optical acutance in
>terms of Leica lens sharpness.  I have heard acutance being
>used as a description of a type of b&w film developer but never
>have heard the word resolution used applied to developers.

I produced exactly such expalanation some weeks ago. It has not been
commented upon so I stopped continuing the series.