Canon has filed several new lens patents for its full frame camera system. New RF mount lens patents covers wide-angle prime lenses which are the 12mm f/2.8, 14mm f/2.8 and 20mm f/2.8.
[Publication number] JP 2021-47384(P2021-47384A)
[Publication date] March 25, 2021
[Patent application title] Optical system and imaging device
Canon RF 12mm f/2.8
Embodiment 1
Focal length: 12.35 mm
F number: 2.88
Half angle of view: 60.28
Image height: 21.64 mm
Lens length: 80.22 mm
BF 16.54 mm
Canon RF 14mm f/2.8
Embodiment 2
Focal length: 14.42 mm
F number: 2.88
Half angle of view: 56.32
Image height: 21.64 mm
Lens length: 91.61 mm
BF 17.29 mm
Canon RF 20mm f/2.8
Embodiment 3
Focal length: 19.48 mm
F number: 2.88
Half angle of view: 48.02
Image height: 21.65 mm
Lens length: 90.74 mm
BF 19.35 mm
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