Archived posting to the Leica Users Group, 1999/01/27

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Subject: [Leica] Another weird lens!
From: Jay LeBlanc <>
Date: Wed, 27 Jan 1999 12:29:13 -0700

I've a strange lens, a Rodenstock XR-Heligon 50mm f/0.75 which is in a
barrel mount.  It too has a very short back focus, about 1/4".  I believe
it is used in electronic wafer fabrication, and doubtless used at
non-infinate image conjugates.  Anyone have any experience with this sort
of lens?   -Jay-

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