Canon Patents: RF 12mm f/2.8 & 15mm f/2 Lenses

Canon has filed two new RF mount lens patents for the 12mm f/2.8 and 15mm f/2 wide-angle lenses, which are designed for Canon EOS R system.

[Publication number] JP 2023-104029
[Publication date] July 28, 2023
[Patent application title] Optical system and imaging device

Example 1 (15mm F2.8)

Focal length 14.83
F-value 2.91
Half angle of view 52.03
Image height 19.00
total length 105.19
Back focus 10.83
Magnification ∞ -0.5

Example 2 (15mm F2)

Focal length 14.70
F-value 2.06
Half angle of view 52.27
Image height 19.00
total length 110.00
Back focus 12.16
Magnification ∞ -0.25

Example 3 (12mm F2.8)

Focal length 12.47
F-value 2.83
Half angle of view 56.72
Image height 19.00
total length 90.60
Back focus 10.19
Magnification ∞-0.25

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