Archived posting to the Leica Users Group, 1998/09/18

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Subject: Re: [Leica] Critical test reports by CDI
From: jackson105@juno.com
Date: Fri, 18 Sep 1998 13:03:10 -0700

One of the differences in the Leica lens that the Mag. did not give over
the Nikkor is that in 40 years someone will still be using the Leica
lens.  I can not say that about the Nikkor.  I can just imagin that
someone will still be bragging about still being able to take pictures
with high quality using a 40 year old Leica lens.
Fred Jackson
jackson105@juno.com
  
On Fri, 18 Sep 1998 07:55:31 -0500 Eric Welch 
<ewelch@ponyexpress.net> writes:
>At 10:14 AM 9/18/98 +0200, you wrote:
>
>>If they did not test the newer 180/2.8 APO than it is more likely 
>Leica's 
>>fault for not supplying it to them and giving an old 180/3.4 instead. 
>It 
>>is more a question of, again (did you notice the pattern...), bad 
>>marketing on their behalf.
>
>Could be, but I know what the new Nikkor can do, and what the Apo 
>Telyt
>(3.4) can do, and they are not comparable. The Apo Telyt is a freak of
>nature from the 70s. But be that as it may, another showing of their 
>lack
>of knowledge is that 3.4 is not much slower in any case, and if they 
>tested
>the T-stop on the Apo Telyt, they'd find the light transmission is so
>efficient that it makes it very close to the equivalent of a 2.8 lens. 
>So
>no significant speed difference. This is a well established fact about 
>this
>lens since the 70s. 
>
>On the other hand, Leica may have not had a model available when this 
>test
>was done. Did they give a date? This is a very news lens (180 Apo 
>2.8), so
>that might be a reason. 
>
>In the end, I really don't put much credence in magazine lens tests,
>because they aren't lens manufacturers, they don't know the intent of 
>the
>manufacturer (with Erwin P. being a notable exception in this area) 
>and so
>how can they possibly test a lens for the target points of any given 
>lens?
>So maybe I shouldn't get my shorts in a knot about them, eh?
>-- 
>
>Eric Welch
>St. Joseph, MO
>http://www.ponyexpress.net/~ewelch
>
>Suicidal twin kills sister by mistake!
>

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