Patent: Sigma 12mm f/2.8 optical formula

Last updated: December 1, 2018 2:51 pm

Published: December 1, 2018

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It looks like Sigma is continuing to work on wide angle lenses for full frame cameras. A recent patent application shows an optical formula for a 12mm f/2.8 Art series lens for full frame cameras. Sigma 12mm f/2.8 Art Specifications:

Focal length: 12.42mm
F number: 2.93
Angle of view: 120.49
Image height: 21.63mm
Lens length: 169.4mm

Sigma doesn't have any fear of making lenses with similar focal lengths and speeds, so it wouldn't surprise me to see this patent actually become a product in the near future.

TAGGED:patent sigma Sigma 12 f/2.8 Art

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Craig is the founder and editorial director for Canon Rumors. He has been writing about all things Canon for more than 17 years. When he's not writing, you can find him shooting professional basketball and travelling the world looking for the next wildlife adventure. The Canon EOS R1 is his camera of choice.