12mm, 14mm, 20mm, F2.8 for 35mm full-frame mirrorless cameras from CANON [Patent]
CANON filed a patent describing optical designs of wide-angle prime lens for 35mm full-frame mirrorless cameras.
【公開番号】特開2021-47384(P2021-47384A) click here
【公開日】令和3年3月25日(2021.3.25)
【発明の名称】光学系およびそれを有する撮像装置
Embodiment 1
Focal length: 12.35 mm
F number: 2.88
Half angle of view: 60.28
Image height: 21.64 mm
Lens length: 80.22 mm
BF 16.54 mm
Embodiment 2
Focal length: 14.42 mm
F number: 2.88
Half angle of view: 56.32
Image height: 21.64 mm
Lens length: 91.61 mm
BF 17.29 mm
Embodiment 3
Focal length: 19.48 mm
F number: 2.88
Half angle of view: 48.02
Image height: 21.65 mm
Lens length: 90.74 mm
BF 19.35 mm
【公開番号】特開2021-47384(P2021-47384A) click here
【公開日】令和3年3月25日(2021.3.25)
【発明の名称】光学系およびそれを有する撮像装置
Embodiment 1
Focal length: 12.35 mm
F number: 2.88
Half angle of view: 60.28
Image height: 21.64 mm
Lens length: 80.22 mm
BF 16.54 mm
Embodiment 2
Focal length: 14.42 mm
F number: 2.88
Half angle of view: 56.32
Image height: 21.64 mm
Lens length: 91.61 mm
BF 17.29 mm
Embodiment 3
Focal length: 19.48 mm
F number: 2.88
Half angle of view: 48.02
Image height: 21.65 mm
Lens length: 90.74 mm
BF 19.35 mm
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