Patent: Ultra-wide zoom lenses for the RF mount, including an RF 9-24mm f/4

Last updated: April 1, 2021 10:55 am

Published: April 1, 2021

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Keith at Northlight Images has uncovered a USPTO patent that shows off optical formulas for ultra-wide-angle zoom lenses for the Canon RF mount.

USPTO Patent 2021 / 0096343:

Canon RF 8-16mm f/4
Canon RF 9-15mm f/4
Canon RF 9-24mm f/4
Canon RF 10-18mm f/4

The closest lens on the Canon RF lens roadmap is an RF 10-24mm f/4L USM.

TAGGED:patent RF 10-24 f/4L

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ByCraig Blair

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.