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16-70mm, 20-72mm, 28-72mm, F4 for full-frame mirrorless cameras from TAMRON [Patent]

TAMRON filed a patent discussing optical designs of 16-70mm, 20-72mm, 28-72mm, F4 zoom lenses for 35mm full-frame mirrorless cameras.

【公開番号】特開2021-85962(P2021-85962A) click here
【公開日】令和3年6月3日(2021.6.3)
【発明の名称】ズームレンズ及び撮像装置

Embodiment 1
Focal length (mm): 16.48 33.54 67.88
F number: 4.12 4.12 4.12
Half angle of viw (degree): 54.46 31.40 16.88
Image height (mm): 19.60 21.63 21.63
Lens length (mm): 147.00 136.83 170.00
JPA 503085962_i_000003.jpg

Embodiment 2
Focal length (mm): 16.48 33.53 67.89
F number: 4.12 4.12 4.12
Half angle of view (degree): 54.66 31.55 16.88
Image height (mm): 19.74 21.63 21.63
Lens length (mm): 140.00 125.98 145.07
JPA 503085962_i_000007.jpg

Embodiment 3
Focal length (mm): 20.40 37.57 67.90
F number: 4.12 4.12 4.12
Half angle of view (degree): 48.64 30.07 16.87
Image height (mm): 19.68 21.63 21.63
Lens length (mm): 147.00 133.51 147.05
JPA 503085962_i_000011.jpg

Embodiment 4
Focal length (mm): 28.85 46.35 72.75
F number: 2.88 2.88 2.89
Half angle of view (degree): 38.09 25.02 15.79
Image height (mm): 19.89 21.61 21.63
Lens length (mm): 135.00 138.51 166.43
JPA 503085962_i_000015.jpg

Embodiment 5
Focal length (mm): 28.86 46.17 72.73
F number: 2.88 2.88 2.88
Half angle of view (degree): 38.02 25.30 15.77
Image height (mm): 20.12 21.30 21.63
Lens length (mm): 140.00 133.82 144.20
JPA 503085962_i_000019.jpg

Embodiment 6
Focal length (mm): 20.41 37.58 67.89
F number: 4.12 4.12 4.12
Half angle of view (degree): 48.69 30.29 17.58
Image height (mm): 19.70 21.04 21.63
Lens length (mm): 147.00 140.98 152.83
JPA 503085962_i_000023.jpg
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