18mm F1.0 and F1.2, and 25mm F1.2 for 35mm full-frame mirroless from CANON

CANON filed a patent containing 18 mm f/1.0 and f/1.2, and 25 mm f/1.2 for mirroless cameras with 35mm full-frame sensor.

【公開番号】特開2019-197095(P2019-197095A) click here
【公開日】令和1年11月14日(2019.11.14)
【発明の名称】結像光学系及びそれを有する撮像装置

18 mm, f/1.2 Specification and lens arrangement of embodiment 1
Focal length: 18.51 mm
F no: 1.24
ω : 49.45
Image height: 21.64 mm
Lens length: 129.00 mm
Back focus: 16.40 mm


25 mm, f/1.2 Specification and lens arrangement of embodiment 2
Focal length: 24.59 mm
F no: 1.24
ω : 41.35
Image height: 21.64 mm
Lens length: 129.01 mm
Back focus: 13.57 mm


18 mm, f/1.0 Specification and lens arrangement of embodiment 4
Focal length: 18.50 mm
F no: 1.03
ω : 49.47
Image height: 21.64 mm
Lens length: 150.00 mm
Back focus: 4.99 mm

50mm F1.2, 40mm F1.2 and 35mm F1.2 for 35mm full-frame mirrorless cameras from SIGMA

SIGMA filed a patent of f/1.2 lenses with various focal lengths, 50, 40 and 35 mm, for mirrorless cameras with 35mm full-frame sensor.

【公開番号】特開2019-197125(P2019-197125A) click here
【公開日】令和1年11月14日(2019.11.14)
【発明の名称】結像光学系

50 mm, f/1.2 Specification and lens arrangement of embodiment 1
Focal length: 50.99 mm
F no: 1.25
2ω : 45.97
Image height: 21.63 mm
Lens length: 154.20 mm


40 mm, f/1.2 Specification and lens arrangement of embodiment 4
Focal length: 41.35 mm
F no: 1.26
2ω : 57.17
Image height: 21.63 mm
Lens length: 157.00 mm


35 mm, f/1.2 Specification and lens arrangement of embodiment 6
Focal length: 35.99 mm
F no: 1.26
2ω : 64.62
Image height: 21.63 mm
Lens length: 140.00 mm