Archived posting to the Leica Users Group, 1996/08/03

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To: leica-users@mejac.palo-alto.ca.us
Subject: Re: 50mm Summicrons
From: Eric Welch <ewelch@cdsnet.net>
Date: Sat, 03 Aug 1996 15:42:21 -0700

At 06:59 PM 8/2/96 -0400, you wrote:

>generation lens 98mm, and the third 116mm.  I believe the first-generation
>lens' center resolution figure of 280mm was the highest the Laboratory had
>ever encountered.

Then they never encountered the 180 Apo telyt. It has, according to U.S.
Navy tests I saw once, a center resolution of higher than 400 and edges were
375. No wonder people think they are consistent to the edges. Only Tech Pan
film has a hope of discerning a difference, and even then, testing technique
would have to be laboratory quality.

==================
Eric Welch
Grants Pass Daily Courier
NPPA Region 11 JIB Chair