12mm F2.8, 14mm F2, 14mm F2.8 from SIGMA

SIGMA filed a patent of 12mm F2.8, 14mm F2 and 14mm F2.8 for 35mm full-frame mirroless-cameras.

【公開番号】特開2020-129022(P2020-129022A)
【公開日】令和2年8月27日(2020.8.27)
【発明の名称】広角レンズ系

Embodiment 1
Focal length: 12.40 mm
F number: 2.93
Angle of view: 122.09
Image height: 21.63 mm
Lens length: 138.00 mm
Back focus: 20.6500 mm


Embodiment 2
Focal length: 14.48 mm
F number: 2.07
Angle of veiw: 114.25
Image height: 21.63 mm
Lens length: 136.00 mm
Back focus: 20.5832 mm


Embodiment 3
Focal length: 14.48 mm
F number: 2.91
Angle of view: 114.26
Image height: 21.63 mm
Lens length: 120.00 mm
Back focus: 20.4000 mm