Archived posting to the Leica Users Group, 2008/07/04

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Subject: [Leica] WTB: 280 f2.8 apo
From: wildlightphoto at earthlink.net (wildlightphoto@earthlink.net)
Date: Fri Jul 4 11:02:33 2008
 
charlie chan <topoxforddoc@btinternet.com> wrote:

>Why not buy the 1.4x APO converter instead?

In my tests on the 280mm APO-Telyts (both f/2.8 and f/4) the 1.4x 
APO-Extender causes a barely perceptible loss of image detail.  Generally 
not enough to notice in real-world circumstances.  the 2x APO-Extender will 
cause a bit more degradation but in most cases not enough to be a problem 
(and I'm very fussy about image quality).

Doug Herr
Birdman of Sacramento
http://www.wildlightphoto.com
Replies: Reply from rsphotoimages at comcast.net (rsphoto's email) ([Leica] WTB: 280 f2.8 apo)