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Canon Patent For 85mm f/1.2, 100mm f/1.4, 24-70mm f/2.8, and 28-85mm f/2-2.8 Lenses for Mirrorless

Canon Patent For 85mm F/1.2, 100mm F/1.4, 24-70mm F/2.8, And 28-85mm F/2-2.8 Lenses For Mirrorless

Another Canon patent application spotted by Hi Lows Note.

Patent application 2019-49646A and 2019-49645A describes optical formulas for 85mm f/1.2, 100mm f/1.4, 24-70mm f/2.8, and 28-85mm f/2-2.8 lenses for mirrorless cameras.

Focal length: 86.5 mm
F number: 1.24
Image height: 21.64 mm
Lens length: 135.0 mm
Back focus: 13.5 mm

Focal length: 100.0 mm
F number: 1.46
Image height: 21.64 mm
Lens length: 142.0 mm
Back focus: 14.1 mm

Zoom ratio: 2.75
Focal length: 24.71 – 45.00 – 67.90 mm
F number: 2.88
Half angle of view: 41.21- 25.68 – 17.67
Image height: 21.64 mm
Lens length: 143.89 – 161.78 – 179.68 mm
Back focus: 13.42 – 27.34 – 38.58 mm

Zoom ratio: 3.04
Focal length: 28.00 – 53.77 – 85.00 mm
F number: 2.00 – 2.60 – 2.88
Half angle of view: 37.69 – 21.92 – 14.28
Image height: 21.64 mm
Lens length: 158.50 – 176.83 – 195.16 mm
Back focus: 16.00 – 28.52 – 41.05 mm

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