Archived posting to the Leica Users Group, 2003/08/26

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Subject: Re: [Leica] Re: Re: Leica 90mm f/4.0 Elmar C prices
From: "Richard Coutant" <rhc3vt@hotmail.com>
Date: Tue, 26 Aug 2003 21:10:03 -0400

The Micro-NIKKOR-P 3.5/55mm, for one.  Can you explain the effect of 
diffraction on a lens such as the 9cm Elmar?  Thanks.

Richard


>Many longer, slower Nikon lenses have f/32. The problem with f/32 on the 90 
>is that while the depth of field may be large, diffraction at that aperture 
>is severe enough to make everything medium fuzzy. Not an effect one aims 
>for with Leica glass.
>

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Replies: Reply from Allen Graves <ahgraves@prodigy.net> (Re: [Leica] Re: Re: Leica 90mm f/4.0 Elmar C prices)