RF35mm F1.8, 20mm F2, 35mm F2.8, 45mm F2.8, 35mm F2 and 16-34mm F4 from CANON

CANON filed a patent containing 35mm F1.8, 20mm F2, 35mm F2.8, 45mm F2.8, 35mm F2 and 16-34mm F4 for mirroless cameras with 35mm full-frame sensor.

【公開番号】特開2019-204115(P2019-204115A) click here
【公開日】令和1年11月28日(2019.11.28)
【発明の名称】光学系及び撮像装置

35mm F1.8 (RF35mm F1.8 MACRO IS STM)
Specification and lens arrangement of embodiment 1
Focal length: 35.60 mm
F number: 1.85
Half angle of view: 31.22
Image height: 21.64 mm
Lens length: 81.87 mm
Back focus: 13.49 mm


20mm F2
Specification and lens arrangement of embodiment 2
Focal length: 20.50 mm
F number: 2.06
Half angle of view: 46.54
Image height: 21.64 mm
Lens length: 90.13 mm
Back focus: 13.50 mm


35mm F2.8
Specification and lens arrangement of embodiment 3
Focal length: 35.70 mm
F number: 2.88
Half angle of view: 31.22
Image height: 21.64 mm
Lens length: 60.00 mm
Back focus: 13.15 mm


45mm F2.8
Specification and lens arrangement of embodiment 4
Focal length: 44.70 mm
F number: 2.85
Half angle of view: 25.83
Image height: 21.64 mm
Lens length: 62.63 mm
Back focus: 13.13 mm


35mm F2
Specification and lens arrangement of embodiment 5
Focal length: 35.91 mm
F number: 2.06
Half angle of view: 31.07
Image height: 21.64 mm
Lens length: 50.50 mm
Back focus: 15.05 mm


16-34mm F4
Specification and lens arrangement of embodiment 6
Focal length: 16.48 24.02 33.75 mm
F number: 4.12
Half angle of view: 52.70 42.01 32.66
Image height: 21.64 mm
Lens length: 117.64 109.16 110.13 mm
Back focus: 11.50 19.17 29.63 mm

Last note

hi-low@twitter

Flower of rose, Bingo Meidiland, in Autumn garden.

Camera: Sigma DP2 Merrill, Lens: 30mm f/2.8, Aper.: f/5.6, Ex.: 1/50 sec, ISO: 200.

50mm f/2.8, 80mm f/2.8, 105mm f/2.8 and 35mm f/1.8 for 35mm full-frame mirrorless from TAMRON

TAMRON filed a patent containing 50 mm f/2.8, 80 mm f/2.8, 105 mm f/2.8 and 35 mm f/1.8 for mirroless cameras with 35mm full-frame sensor.

【公開番号】特開2019-200339(P2019-200339A) click here
【公開日】令和1年11月21日(2019.11.21)
【発明の名称】光学系及び撮像装置

50 mm f/2.8 Specification and lens arrangement of embodiment 1
Focal length: 49.9833 mm
F number: 2.6093
Half angle of view: 23.1943
Image height: 21.64 mm


80 mm f/2.8 Specification and lens arrangement of embodiment 2
Focal length: 78.8596 mm
F number: 2.8545
Half angle of view: 15.1335
Image height: 21.64 mm


105 mm f/2.8 Specification and lens arrangement of embodiment 3
Focal length: 104.9887 mm
F number: 2.8961
Half angle of view: 11.4568
Image height: 21.64 mm


35 mm f/1.8 Specification and lens arrangement of embodiment 4
Focal length: 36.0396 mm
F number: 1.8823
Half angle of view: 30.7315
Image height: 21.64 mm


105 mm f/2.8 Specification and lens arrangement of embodiment 5
Focal length: 105.0016 mm
F number: 2.8622
Half angle of view: 11.5959
Image height: 21.64 mm

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

Amatsu Shrine

ここに伊弉諾尊が居られるそうです。

Camera: Sigma DP2 Merrill, Lens: 30mm f/2.8, Aper.: f/5.6, Ex.: 1/60 sec, ISO: 200.

Torii gates

立ち寄った神社に鳥居のトンネルが出来ていました。

Camera: Sigma DP2 Merrill, Lens: 30mm f/2.8, Aper.: f/8, Ex.: 1/80 sec, ISO: 100.

神社は、まだまだ伸ばしたいようです。

400mm/F2.8, 500mm/F4, 600mm/F4 and 800mm/F5.6 from CANON

CANON filed a patent of 400mm/F2.8, 500mm/F4, 600mm/F4 and 800mm/F5.6 for a 35mm full-frame sensor camera.

【公開番号】特開2019-194630(P2019-194630A) click here
【公開日】令和1年11月7日(2019.11.7)
【発明の名称】光学系及びそれを有する撮像装置

600 mm, f/4
Specification and lens arrangement of embodiment 1
Focal length: 584.99 mm
F no: 4.12
ω : 2.12
Image height: 21.64 mm
Lens length: 476.28 mm
Back focus: 87.97 mm


500 mm, f/4
Specification and lens arrangement of embodiment 2
Focal length: 489.05 mm
F no: 4.12
ω : 2.53
Image height: 21.64 mm
Lens length: 411.08 mm
Back focus: 86.24 mm


400 mm, f/2.8
Specification and lens arrangement of embodiment 3
Focal length: 392.56 mm
F no: 2.90
ω : 3.15
Image height: 21.64 mm
Lens length: 371.16 mm
Back focus: 59.99 mm


800 mm, f/5.6
Specification and lens arrangement of embodiment 4
Focal length: 778.44 mm
F no: 5.80
ω : 1.59
Image height: 21.64 mm
Lens length: 489.01 mm
Back focus: 48.66 mm

Many contact lines over my head

Many contact lines of shinkansen are running over my head.

Camera: Sigma DP2 Merrill, Lens: 30mm f/2.8, Aper.: f/8, Ex.: 1/20 sec, ISO: 100.

最近１か月、鉄道での出張が続きました。

A cross presenting to a cloudy sky

A cross at the top of church is presenting to a cloudy sky.

Camera: Sigma DP2 Merrill, Lens: 30mm f/2.8, Aper.: f/6.3, Ex.: 1/200 sec, ISO: 100.