Archived posting to the Leica Users Group, 2000/11/30

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Subject: Re: [Leica] Apo 100, CoF and Macro
From: Hans-Peter.Lammerich@t-online.de
Date: Thu, 30 Nov 2000 21:03:50 +0100
References: <200011300801.AAA03045@mejac.palo-alto.ca.us>
 
At 1:2 or 1:1 the Apo 100's or the Elpro 1:1's front lens get very close
to the subject, closer even than the 2.8/60. Stopped down for dof, the
Apo's advantage in optical performance over the conventional 4/100 or
2.8/60 will partially disappear. Opened up, shooting three dimensional
objects at close distance large parts of the image are unsharp anyway. I
therefore consider the Apo 100 as a reasonably fast general purpose lens
with a great macro option. Used for macro work only, its merits would be
wasted.

Hans-peter