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New Sigma patent for the 28-70mm f/2.0 zoom, 400mm f/2.8 and other new fast primes

A year ago Sigma CEO Yamaki said they are now thinking about making “unique” lenses. Well the latest published patents certainly go into this direction! Asobinet just found the patents for those optical designs:

Reminder: Trusted sources told me Sigma has a press event in very early February! Let’s see what’s coming…

 

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