33mm F0.94 for APS-C sensor from CANON

CANON filed a patent describing a focal reducer making 33mm F0.94 lens for APS-C sensor from 50mm F1.4 for 35mm full-frame sensor.

【公開番号】特開2021-167921(P2021-167921A) click here
【公開日】令和3年10月21日(2021.10.21)
【発明の名称】縮小光学系および撮像装置

Master lens
Focal length (mm): 51.46
F number: 1.45
Half angle of view (degree): 22.80
Image height (mm): 21.64
Lens length (mm): 94.41
Back focus (mm): 39.81


With embodiment 4
Focal length (mm): 33.45
F number: 0.94
Half angle of view (degree): 22.42
Image height (mm): 13.80
Lens length (mm): 91.91
Back focus (mm): 9.73

24mm F1.8, 28mm F2, 35mm F2, and 50mm F2 from SIGMA

SIGMA filed a patent discussing 24mm F1.8, 28mm F2, 35mm F2, and 50mm F2 for 35mm full-frame mirrorless cameras.

【公開番号】特開2021-165807(P2021-165807A) click here
【公開日】令和3年10月14日(2021.10.14)
【発明の名称】結像光学系

Embodiment 1
Focal length (mm): 33.81
F number: 2.07
Angle of view (degree): 66.94
Image height (mm): 21.63
Lens length (mm): 79.15
Back focus (mm): 17.8978


Embodiment 2
Back focus (mm): 35.99
F number: 2.07
Angle of view (degree): 63.53
Image height (mm): 21.63
Lens length (mm): 79.15
Back focus (mm): 17.8981


Embodiment 3
Back focus (mm): 50.00
F number: 2.08
Angle of view (degree): 46.01
Image height (mm): 21.63
Lens length (mm): 84.36
Back focus (mm): 17.8985


Embodiment 4
Back focus (mm): 28.00
F number: 2.05
Angle of view (degree): 78.03
Image height (mm): 21.63
Lens length (mm): 74.15
Back focus (mm): 24.4448


Embodiment 5
Back focus (mm): 24.00
F number: 1.86
Angle of view (degree): 63.73
Image height (mm): 14.20
Lens length (mm): 64.15
Back focus (mm): 17.8982

Wide-angle lens (24mm equivalent with 35mm full-frame sensor) for 1 inch-type sensor cameras on a smartphone

KANTATSU filed a patent describing wide-angle lenses for 1 inch-type sensor cameras on a smart-phone.

【公開番号】特開2021-162805(P2021-162805A) click here
(43)【公開日】令和3年10月11日(2021.10.11)
(54)【発明の名称】撮像レンズ

Embodiment 1
Focal length (mm): 6.89
F number: 1.95
Half angle of view (degree): 42.5
Image height (mm): 6.25
Lens length (mm): 7.43


Embodiment 2
Focal length (mm): 6.70
F number: 1.90
Half angle of view (degree): 42.6
Image height (mm): 6.25
Lens length (mm): 7.43


Embodiment 6
Focal length (mm): 6.73
F number: 1.90
Half angle of view (degree): 42.6
Image height (mm): 6.25
Lens length (mm): 7.43


Embodiment 7
Focal length (mm): 6.68
F number: 1.95
Half angle of view (degree): 42.9
Image height (mm): 6.25
Lens length (mm): 7.42


Embodiment 8
Focal length (mm): 6.78
F number: 1.95
Half angle of view (degree): 42.5
Image height (mm): 6.25
Lens length (mm): 7.46


For comment: hi-low@twitter

RF 28-70mm F2.8 and 28-86mm F2.8-5.6

CANON filed a patent discussing 28-70mm F2.8 and 28-86mm F2.8-5.6 for 35mm full-frame mirrorless cameras.

【公開番号】特開2021-156963(P2021-156963A) click here
【公開日】令和3年10月7日(2021.10.7)
【発明の名称】ズームレンズおよび撮像装置

Embodiment 1
Zoom ratio: 2.35
Focal length (mm): 28.84 36.81 67.90
F number: 2.91 2.91 2.91
Half angle of view (degree): 32.68 29.23 17.67
Image height (mm): 18.50 20.60 21.64
Lens length (mm): 117.09 109.31 101.58
Back focus (mm): 9.99 13.47 21.59


Embodiment 2
Zoom ratio: 2.35
Focal length (mm): 28.84 37.17 67.90
F number: 2.91 2.91 2.91
Half angle of view (degree): 32.65 28.90 17.67
Image height (mm): 21.64 21.64 21.64
Lens length (mm): 132.62 122.81 111.18
Back focus (mm): 21.92 26.79 39.84


Embodiment 3
Zoom ratio: 2.35
Focal length (mm): 28.84 37.76 67.90
F number: 2.91 2.91 2.91
Half angle of view (degree): 32.65 28.52 17.67
Image height (mm): 21.64 21.64 21.64
Lens length (mm): 145.96 132.92 114.12
Back focus (mm): 24.12 30.24 43.27


Embodiment 4
Zoom ratio: 2.35
Focal length (mm): 28.84 38.11 67.90
F number: 2.91 2.91 2.91
Half angle of view (degree): 32.64 27.97 17.59
Image height (mm): 21.64 21.64 21.64
Lens length (mm): 158.97 140.28 124.83
Back focus (mm): 11.36 16.01 33.05


Embodiment 5
Zoom ratio: 2.99
Focal length (mm): 28.84 36.43 86.18
F number: 2.91 3.50 5.60
Half angle of view (degree): 32.64 28.55 14.09
Image height (mm): 21.64 21.64 21.64
Lens length (mm): 156.45 143.53 123.40
Back focus (mm): 7.83 12.26 26.55


For comment: hi-low@twitter

RF 140mm, 180mm, 200mm F3.5 MACRO

CANON filed a patent describing 140mm, 180mm, 200mm F3.5 macro lenses for 35mm full-frame sensor cameras.

【公開番号】特開2021-152568(P2021-152568A) click here
【公開日】令和3年9月30日(2021.9.30)
【発明の名称】光学系および撮像装置

Embodiment 1
Focal length (mm): 171.00
Ｆ number 3.50
Half angle of view (degree): 7.21
Image height (mm): 21.64
Lens length (mm): 194.49
BACK FOCUS (MM): 47.67


Embodiment 2
Focal length (mm): 174.43
Ｆ number 3.50
Half angle of view (degree): 7.07
Image height (mm): 21.64
Lens length (mm): 189.49
BACK FOCUS (MM): 13.73


Embodiment 3
Focal length (mm): 185.40
Ｆ number 3.50
Half angle of view (degree): 6.66
Image height (mm): 21.64
Lens length (mm): 197.49
BACK FOCUS (MM): 33.39


Embodiment 4
Focal length (mm): 172.00
Ｆ number 3.50
Half angle of view (degree): 7.17
Image height (mm): 21.64
Lens length (mm): 201.89
BACK FOCUS (MM): 31.33


Embodiment 5
Focal length (mm): 176.60
Ｆ number 3.50
Half angle of view (degree): 6.98
Image height (mm): 21.64
Lens length (mm): 192.79
BACK FOCUS (MM): 49.08


Embodiment 6
Focal length (mm): 140.00
Ｆ number 3.50
Half angle of view (degree): 8.78
Image height (mm): 21.64
Lens length (mm): 177.49
BACK FOCUS (MM): 35.17


Embodiment 7
Focal length (mm): 194.00
Ｆ number 4.00
Half angle of view (degree): 6.36
Image height (mm): 21.64
Lens length (mm): 202.49
BACK FOCUS (MM): 39.36