RF 28mm F1.4, 30mm F1.4 and 35mm F1.4 from CANON

CANON filed a patent discussing optical designs of 28mm F1.4, 30mm F1.4 and 35mm F1.4 for 35mm full-frame mirrorless cameras.

【公開番号】特開2021-63966(P2021-63966A) click here
【公開日】令和3年4月22日(2021.4.22)
【発明の名称】光学系およびそれを有する撮像装置、撮像システム

Embodiment 1: RF35mm F1.4
Focal length: 35.00 mm
F number 1.42
Half angle of view: 31.72
Image height: 21.64 mm
Lens length: 112.71 mm
Back focus: 13.62 mm


Embodiment 2: RF35mm F1.4
Focal length: 35.00 mm
F number: 1.42
Half angle of view: 31.72
Image height: 21.64mm
Lens length: 113.32 mm
Back focus: 12.86 mm


Embodiment 3: RF35mm F1.4
Focal length: 34.99 mm
F number: 1.42
Half angle of view: 31.73
Image height: 21.64 mm
Lens length: 113.68 mm
Back focus: 14.51 mm


Embodiment 4: RF35mm F1.4
Focal length: 34.99 mm
F number: 1.42
Half angle of view: 31.73
Image height: 21.64 mm
Lens length: 121.14 mm
Back focus: 11.05 mm


Embodiment 5: RF30mm F1.4
Focal length: 29.26 mm
F number: 1.42
Half angle of view: 36.48
Image height: 21.64 mm
Lens length: 118.08 mm
Back focus: 10.05 mm


Embodiment 6: RF28mm F1.4
Focal length: 28.00 mm
F number: 1.42
Half angle of view: 37.69
Image height: 21.64 mm
Lens length: 140.62 mm
Back focus: 21.99 mm


Embodiment 7: RF35mm F1.4
Focal length: 34.98 mm
F number: 1.42
Half angle of view: 31.73
Image height: 21.64 mm
Lens length: 154.45 mm
Back focus: 16.17 mm