Archived posting to the Leica Users Group, 1998/06/13

[Author Prev] [Author Next] [Thread Prev] [Thread Next] [Author Index] [Topic Index] [Home] [Search]
Subject: Re: [Leica] Lens tests & Etc. ;-)
From: "Thomas J. Donovan" <75674.3465@compuserve.com>
Date: Sat, 13 Jun 1998 16:25:15 -0400
 
Bud Cook,

>>seems to be missing from everyone's *tests* is
                     >>color transmission<<

You're very correct & that's why I subscribed ( for
awhile ) to "fotoMagazin"; their tests ( granted, not
MTF tests ) did include a "Farbprofil" which gave %
transmissions for red, green, & blue.

An amazing lens ( Sept 95 )  was the Zeiss 200 f2 with
a color profile of: a.) red; 99% b.) green; 100%. c.) blue;
100%. Color transmission was described as absolutely
neutral; & incredible sharpness & contrast.

The great Zeiss portrait lens ( 85 f1.4 ) had a color profile
of: a.)red; 88%. b.) green; 99%. c.) blue; 98%. That's why 
I chose & worked with ( for awhile ) the Zeiss 100 f2; it's
color profile was: a.) red. 94%. b.) green; 96%. c.) blue;
96%...........& it was very sharp & contrasty!

Tom D.