Archived posting to the Leica Users Group, 2009/11/12
[Author Prev] [Author Next] [Thread Prev] [Thread Next] [Author Index] [Topic Index] [Home] [Search]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 http://www.wildlightphoto.com -------------------------------------------------------------------- mail2web.com - Microsoft? Exchange solutions from a leading provider - http://link.mail2web.com/Business/Exchange