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15-45mm F2.8 and 18-105mm F2.8 for APS-C DSLR from RICOH [Patent]

RICOH filed a patent containing 15.5 - 43.7mm F2.9 and 18.5 - 101.9 mm F2.9 for APS-C DSLR cameras.

【公開番号】特開2020-154286(P2020-154286A) click here
【公開日】令和2年9月24日(2020.9.24)
【発明の名称】ズームレンズ系、交換レンズ及び撮影装置

Embodiment 8: 15-45mm F2.8
Focal length: 15.5~26.0~43.7 mm
F number: 2.9~2.9~2.9
Half angle of view: 44.3~28.4~17.6
Image height: 14.24 mm
Back focus: 35.592~50.304~67.802 mm
JPA 502154286_i_000011.jpg

Embodiment 9: 18-105mm F2.8
Focal length: 18.5~43.5~101.9 mm
F number: 2.9~2.9~2.9
Half angle of view: 39.0~17.8~7.7
Image height: 14.24 mm
Back focus: 30.120~47.793~66.140 mm
JPA 502154286_i_000012.jpg
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26mm and 23mm F2.8 for APS-C compact cameras from RICOH [Patent]

RICOH filed a patent of 23mm to 28mm f/2.8 lenses for APS-C compact cameras.
GR sister might come.

【公開番号】特開2020-144271(P2020-144271A) click here
【公開日】令和2年9月10日(2020.9.10)
【発明の名称】結像レンズおよびカメラおよび携帯情報端末装置

Embodiment 1
f = 25.99 mm,F = 2.86,ω = 28.3
JPA 502144271_i_000003.jpg

Embodiment 7
f = 23.42 mm,F = 2.88,ω = 30.9
JPA 502144271_i_000009.jpg

Other Embodimens
2: f = 26.05,F = 2.87,ω = 28.3
3: f = 26.05,F = 2.87,ω = 28.3
4: f = 28.00,F = 2.88,ω = 26.6
5: f = 26.05,F = 2.88,ω = 28.3
6: f = 24.68,F = 2.88,ω = 29.6
8: f = 26.04,F = 2.88,ω = 28.3
9: f = 26.06,F = 2.88,ω = 28.3
10: f = 26.05,F = 2.88,ω = 28.3
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24-70mm F4, 16-34mm F4, and 12-24mm F4 from CANON [Patent]

CANON filed patents of 24-70mm F4, 16-34mm F4, and 12-24mm F4 for 35mm full-frame mirroless cameras.

24-70mm F4
【公開番号】特開2020-140060(P2020-140060A) click here
【公開日】令和2年9月3日(2020.9.3)
【発明の名称】ズームレンズ及びそれを有する撮像装置

Embodiment 1
Zoom ratio: 2.75
Focal length: 24.73 40.97 67.90 mm
F number: 4.12 4.12 4.12
Half angle of view: 41.19 27.84 17.67
mage height: 21.64 21.64 21.64 mm
Lens length: 145.62 138.11 159.46 mm
Back focus:18.00 23.52 49.52 mm
JPA 502140060_i_000004.jpg

16-34mm F4 and 12-24mm F4
【公開番号】特開2020-140142(P2020-140142A) click here
【公開日】令和2年9月3日(2020.9.3)
【発明の名称】撮像光学系およびそれを有する撮像装置

Embodiment 1: 16-34mm F4
Zoom ratio: 2.06
Focal length: 16.49 23.84 33.97 mm
F number: 4.12 4.12 4.12
Half angle of view: 52.68 42.22 32.49
Image height: 21.64 21.64 21.64 mm
Lens length: 138.64 133.28 136.75 mm
Back focus: 38.49 48.58 62.18 mm
JPA 502140142_i_000005.jpg

Embodiment 5: 12-24mm F4
Zoom ratio: 2.06
Focal length: 12.33 16.86 23.40 mm
F number: 4.12 4.12 4.12
Half angle of view: 60.32 52.08 42.76
Image height: 21.64 21.64 21.64 mm
Lens length: 155.71 148.83 150.16 mm
Back focus: 38.45 47.41 60.45 mm
JPA 502140142_i_000017.jpg
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