Archived posting to the Leica Users Group, 2005/03/19

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Subject: [Leica] Digital cameras with large aperture lenses
From: henningw at archiphoto.com (Henning Wulff)
Date: Sat Mar 19 17:10:52 2005
References: <NEBBJDFBIKOBILIKPPBNGECJBJAB.red735i@earthlink.net>

At 12:58 PM -0800 3/19/05, Frank Filippone wrote:
>Adam, I'm with you.... sounds like a better explanation would be more
>satisfying....
>
>There is an interaction between image circle and F-Stop in LF lenses ( the
>smaller the lens opening ( F-Stop) the bigger the image circle made by the
>lens)... But this applies to only certain lenses of specific design.
>Effectively, the lens outermost image circle gets bigger and also
>sharpens....  But again, with respect to lenses that cover the 1x1 1/2 area,
>then used on a smaller sensor, this sounds like not the answer that makes
>sense...
>
>
>
>Frank Filippone
>red735i@earthlink.net

You're right Frank, that has nothing to do with it. :-)

See my response to Adam and let me know if it helps. I guess I should 
actually draw some diagrams and post them, but I've been drawing all 
week and want to take a break.

:-)

-- 
    *            Henning J. Wulff
   /|\      Wulff Photography & Design
  /###\   mailto:henningw@archiphoto.com
  |[ ]|     http://www.archiphoto.com

Replies: Reply from red735i at earthlink.net (Frank Filippone) ([Leica] Digital cameras with large aperture lenses)
In reply to: Message from red735i at earthlink.net (Frank Filippone) ([Leica] Digital cameras with large aperture lenses)