Archived posting to the Leica Users Group, 2009/11/12

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Subject: [Leica] anyone see this?
From: wildlightphoto at (wildlightphoto at
Date: Thu, 12 Nov 2009 12:32:31 -0500

Greg Lorenzo wrote:

I would think it makes sense to develop exceptional lenses for the larger
format S2 and then scale down these same optical formulas to fit a FF DSLR.

IIRC the 120mm Macro S lens is scaled up from the 100 APO-Macro-Elmarit-R,
the 180mm S lens is derived from the 180mm APO-Summicron-R, and the 350mm
APO-Elmar-S is derived from the 280mm f/4 APO-Telyt-R.  I also think I
heard that the 70mm S lens is derived from the 50mm Summilux-M ASPH.

Doug Herr
Birdman of Sacramento

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