Patent: Optical formulation for an RF 28mm f/1.4 and RF 35mm f/1.4 | Canon Rumors

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Canon Inc. has filed a patent utility for extra optical formulation of quick RF prime lenses, this time an RF 28mm f/1.4L USM and an RF 35mm f/1.4L USM.

There have been many patents up to now for these optical formulation, however our roadmap exhibits an RF 35mm f/1.2L USM and I haven’t but been advised that an RF 28mm f/1.4L USM was on the best way.

Canon RF 28mm f/1.4L USM

Focal size: 26.79mm
F-number: 1.44
Half angle of view: 38.93°
Picture top: 21.64mm
Lens total size: 134.78mm
Backfocus: 13.00mm

Canon RF 35mm f/1.4L USM

Focal size: 33.73mm
F-number: 1.44
Half angle of view: 32.68°
Picture top: 21.64mm
Lens total size: 143.92mm
Backfocus: 20.00mm



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