spylaw4 Posted July 10, 2007 Share #1 Posted July 10, 2007 Advertisement (gone after registration) Or rather, what's the difference between them? We all bandy the names about but just what factors make a Summicron a Summicron, and what distinguishes it from a Summilux, or an Elmarit? I am NOT talking about resultant image quality, more about the inherent design/construction differences, that cause a lens to be called a 'cron, or a 'lux etc.etc. Perhaps someone can explain this to me, please, or point me to an explanation? Thanks! Link to post Share on other sites More sharing options...
Advertisement Posted July 10, 2007 Posted July 10, 2007 Hi spylaw4, Take a look here What's in a name?. I'm sure you'll find what you were looking for!
Angora Posted July 10, 2007 Share #2 Posted July 10, 2007 Master of the Obvious: the maximal aperture and therefore the lens design. Link to post Share on other sites More sharing options...
earleygallery Posted July 10, 2007 Share #3 Posted July 10, 2007 Generally, Summilux 1.4, Summicron 2, Elmar/it 2.8. There are some exceptions to this however. Link to post Share on other sites More sharing options...
gvaliquette Posted July 10, 2007 Share #4 Posted July 10, 2007 Master of the Obvious: the maximal aperture and therefore the lens design. Angora: NOOO. The design of a Leica lens does NOT flow from the name. Generally, for Leica, the name is dictated by the aperture ONLY. The design of the 19mm f2.8 Elmarit-R is obviously very different from the design of the 180 APO-Elmarit-R. This is in contrast with Zeiss, where the name does imply the design: Biogon for symmetrical (RF) wide angle designs, Distagon for retrofocus wide-angles, Tessar for the classic four elements/three groups normal focal lenght lenses, Planal for double Gauss normal focal length, Sonnar for telephotos, Tele-Tessar for long teles, etc. The Zeiss name says something about the design, the Leica name is generally redundant with the aperture. Personnaly, I prefer the Zeiss approach. Guy Link to post Share on other sites More sharing options...
rob_x2004 Posted July 10, 2007 Share #5 Posted July 10, 2007 Actually Brian, it is derived from the latin of price cubed, which aperture just happens to follow, by virtue smaller numbers are harder to paint on the barrel. Link to post Share on other sites More sharing options...
Angora Posted July 11, 2007 Share #6 Posted July 11, 2007 Angora: NOOO. The design of a Leica lens does NOT flow from the name. Generally, for Leica, the name is dictated by the aperture ONLY. The design of the 19mm f2.8 Elmarit-R is obviously very different from the design of the 180 APO-Elmarit-R. This is in contrast with Zeiss, where the name does imply the design: Biogon for symmetrical (RF) wide angle designs, Distagon for retrofocus wide-angles, Tessar for the classic four elements/three groups normal focal lenght lenses, Planal for double Gauss normal focal length, Sonnar for telephotos, Tele-Tessar for long teles, etc. The Zeiss name says something about the design, the Leica name is generally redundant with the aperture. Personnaly, I prefer the Zeiss approach. Guy What I mean is: if the aperture is different, so is the design. A 50 mm opening @ f/2 has a different design than a 50 mm opening @ f/1.4. Link to post Share on other sites More sharing options...
rob_x2004 Posted July 11, 2007 Share #7 Posted July 11, 2007 Advertisement (gone after registration) Well they are all different. Early Lux v late Lux v asphLux, let alone Lux v Cron V ...etc. But the name does follow the f/stop. Link to post Share on other sites More sharing options...
Guest stnami Posted July 11, 2007 Share #8 Posted July 11, 2007 all true! Link to post Share on other sites More sharing options...
spylaw4 Posted July 11, 2007 Author Share #9 Posted July 11, 2007 Thanks for that folks! Link to post Share on other sites More sharing options...
farnz Posted July 11, 2007 Share #10 Posted July 11, 2007 Brian, Not sure if the thread below helps but parts are informative and other parts are entertaining. (Apologies that it's from 'that' website. ) Leica and Rangefinders Forum: Leica Lens names - photo.net Pete. Link to post Share on other sites More sharing options...
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