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Canon Patent: RF 15mm F/2 And RF 12mm F/2.8 Lenses

Canon Patent: RF 15mm f/2 And RF 12mm f/2.8 Lenses

And here is another Canon patent application, for two RF mount lenses. Canon patent application 023104029 (Japan, 7/28/2023) discusses optical formulas for two fast prime lenses for the RF mount:…

Canon Patent: RF 100-300mm F/2.8L IS USM Lens

Canon Patent: RF 100-300mm f/2.8L IS USM Lens

A new Canon patent application was spotted. Canon patent application 2023099388 (Japan, published 7/13/2023) discusses optical formulas for what appears to be an RF 100-300mm f/2.8L IS USM lens for…

Canon Patent: RF-S 10-14mm F3.5-4 Lens For APS-C

Canon Patent: RF-S 10-14mm F3.5-4 Lens For APS-C

After a long time, here is a new Canon patent application. Canon patent application 2023066202 (Japan, published 5/15/2023) discusses optical formulas for a RF-S 10-14mm F3.5-4 lens, i.e. a lens…

Canon Patent: RF 100-300mm F2.8 X 1.4 Extender Lens

Canon Patent: RF 100-300mm F2.8 x 1.4 Extender Lens

A new Canon patent application for another RF mount lens. Canon patent application 2023018429 (Japan, published 2/8/2023) discusses optical formulas for an RF 100-300mm F2.8 x 1.4 extender lens. From…

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