It isn’t a secret that Sinar-branded lenses are made by Rodenstock. I have one and the fine print on the lens says “Made by Rodenstock”. Looking at Sinar’s descriptions, and especially Sinar’s specifications, the following identifications can be made:

Sinar name Rodenstock name
Sinaron WE Apo-Grandagon
Sinaron W Grandagon-N
Sinaron S Apo-Sironar-N
Sinaron SE Apo-Sironar-S
Sinaron WS Apo-Sironar-W
Macro Sinaron Apo-Macro-Sironar
Apo Sinaron Apo-Ronar

The Rodenstock is currently made and you can download a PDF file with its specs, according to Rodenstock, from http://www.rodenstock-photo.com The Schneider is no longer made, replaced by the Super-Angulon-XL and the f6.8 “Classic”. Schneider has specs on their older lenses at including the 90 mm f5.6 Super-Angulon at http://www.schneideroptics.com/info/vintage_lens_data/ , (link)

You can look up the age of the Schneider using the table at http://www.schneideroptics.com/info/age_of_lenses/index.htm .

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中文关键字：摄影镜头 镜头 rodenstock 对照 型号 sinar sinaron sironar apo made schneider schneideroptics lenses and grandagon http angulon at can com