Canon RF Patents: 200mm f2, 300mm F2.8 & 500mm F4 Super-Telephoto Lenses

Canon has filed several new RF mount super-telephoto lenses patents for the 200mm f/2, 300mm f/2.8 and 500mm f/4 Lenses for Canon full-frame mirrorless cameras.

[Publication number] P2021039379
[Publication date] APRIL 25, 2022
[Patent application title] Optical system and imaging device

600mm F4

Focal length 585.00 
F number 4.12 
Half angle of view 2.12 
Image height 21.64 
Lens overall length 
475.00 Back focus 103.93

400mm F2.8

Focal length 392.57 
F number 2.90 
Half angle of view 3.15 
Image height 21.64 
Lens overall length 371.15 
Back focus 75.00

500mm F4

Focal length 489.05 
F number 4.12 
Half angle of view 2.53 
Image height 21.64 
Lens overall length 411.08 
Back focus 100.00

800mm F5.8

Focal length 777.00 
F number 5.80 
Half angle of view 1.59 
Image height 21.64 
Lens overall length 498.01 
Back focus 158.67

300mm F2.8

Focal length 292.53 
F number 2.90 
Half angle of view 4.23 
Image height 21.64 
Lens overall length 273.92 
Back focus 76.35

200mm F2

Focal length 200.00 
F number 2.06 
Half angle of view 6.17 
Image height 21.64 
Lens overall length 196.01 
Back focus 38.50

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Via: Digicame-info