RF 34mm F1.2 from CANON

CANON filed a patent describing optical designs of 34mm F1.2 for 35mm full-frame mirrorless cameras.

【公開番号】特開2021-60475(P2021-60475A) click here
【公開日】令和3年4月15日(2021.4.15)
【発明の名称】光学系およびそれを有する撮像装置

Embodiment 1
Focal length: 34.00 mm
F number: 1.23
Half angle of view: 32.47
Image height: 21.64 mm
Lens length: 147.45 mm
Back focus: 19.82 mm


Embodiment 2
Focal length: 35.76 mm
F number: 1.23
Half angle of view: 31.17
Image height: 21.64 mm
Lens length: 147.45 mm
Back focus: 19.50 mm


Embodiment 3
Focal length: 34.00 mm
F number: 1.23
Half angle of view: 32.47
Image height: 21.64 mm
Lens length: 147.45 mm
Back focus: 20.95 mm


Embodiment 4
Focal length: 34.00 mm
F number: 1.23
Half angle of view: 32.47
Image height: 21.64 mm
Lens length: 149.45 mm
Back focus: 16.49 mm