Archived posting to the Leica Users Group, 1996/10/19

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Subject: Re: Nov 96 POP PHOTO Review of 50mm's -Reply
From: Joel Tlumak <JT@JMBM.COM>
Date: Sat, 19 Oct 1996 09:58:53 -0700

I believe that members of this group who get upset over a lens
test review of a Leica lens are missing the point of tests.  The
ultimate test of any lens is in the photos that it produces. 
Nothing more and nothing less.  All that lens tests in photo
magazines tell you is (1) how sharp a lens may be, whether
that sharpness is measured in resolution and/or contrast, and
(2) whether the lens produces a variety of problems, such as
vignetting, excessive flare, etc.  

Over the years I have seen lens tests of 50mm lenses by a
host of U.S. and British magazines and in those tests Leica
lenses are almost invariably outstanding but also on par with
50mm lens from other manufacturers.  What that says, and all
that should say, is that if you bought a Leica lens you will get
extremely sharp photos.  Although you may also get extremely
sharp photos from many of the lenses Leica may be
compared to, you will also get different types of photo quality. 
And it is for Leica photo quality that photographers buy Leica
glass. And it is for Zeiss photo quality that photographers use
Contax cameras.  Etc.

The problem with tests is how does a publication determine
the "photo quality" that a lens produces.  Regardless of the
type of tests made by photo magazines, it is without question
that Leica lenses produce distinctive qualities that make it
worthwhile for people to pay Leica prices.  I don't question
whether lenses from other manufacturers match or exceed the
sharpness of a Leica lens or of any lens I may be buying.  My
concern is what a lens produces for me, given my tastes in
color, gray scales and shadow detail, and what are the photo
qualities of lenses by specific manufacturers.  The sharpness
factor gives me a minimum standard.  It is not the ultimate
standard.  Leica's problem with tests like the one in Pop
Photo, if there is one, is a marketing problem; Leica users
should have no such problem.  No matter how great a 50mm
Summicron may be, why are there some Leica users who
prefer shooting with either the old or new 50mm collapsible
Elmar rather than with an old or new 50mm Summicron? 
Here sharpness alone is not the determining factor -- and that
should be everywhere as well.