Carl Zeiss
Carl Zeiss AG is a German manufacturer of optical systems and optoelectronics founded in 1846. ZEISS's activities span from semiconductor lithography, micros...
7Artisans
7Artisans is a Chinese manufacturer of photographic lens. Its lens design is inspired by classic Leica lenses, though some more recent 7Artisans crop-sensor ...
Tamron
Tamron Co., Ltd. is a Japanese manufacturer of photographic lenses and optical components. Sony Corporation is a major shareholder in Tamron.
That's all for now.