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

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Subject: Re: diffraction (was Re: [Leica] Leica 90mm f/4.0 Elmar C prices)
From: Afterswift@aol.com
Date: Tue, 26 Aug 2003 23:22:45 EDT

In a message dated 8/26/03 8:17:13 PM Pacific Daylight Time, 
telyt@earthlink.net writes:

> Diffraction cannot be reduced.  It's a function of wave mechanics and the
>  size of the aperture, nothing else.  Other aberations can be reduced enough
>  so that the sum of the aberations and diffraction still makes an acceptably
>  sharp picture - depending on the size of the print, of course.
>  
>  Doug Herr
- ------------------------------------
Doug,

I reckon that's what they did. I assume the object of this tradeoff was a 
marketing promotion.

br
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Replies: Reply from Henning Wulff <henningw@archiphoto.com> (Re: diffraction (was Re: [Leica] Leica 90mm f/4.0 Elmar C prices))