20-40mm F2.8, 20-50mm F2.8, 25-50mm F2, 28-72mm F2.8, 28-72mm F4 for 35mm full-frame mirrorless cameras from TAMRON

TAMRON filed a patent describing 20-50mm F2.8, 20-40mm F2.8, 25-50mm F2, 28-72mm F2.8, and 28-72mm F4 for 35mm full-frame mirrorless cameras.

【公開番号】特開2021-196572(P2021-196572A) click here
【公開日】令和3年12月27日(2021.12.27)
【発明の名称】ズームレンズ及び撮像装置

Embodiment 1
Focal length (mm): 25.78 35.45 48.51
F number: 2.06 2.06 2.06
Half angle of view (degree): 41.07 31.21 23.00
Image height (mm): 20.61 21.63 21.63
Lens length (mm): 150.05 145.05 144.82


Embodiment 2
Focal length (mm): 20.60 32.56 48.51
F number: 2.88 2.88 2.88
Half angle of view (degree): 48.36 33.40 23.02
Image height (mm): 19.68 21.63 21.63
Lens length (mm): 150.00 150.00 150.00


Embodiment 3
Focal length (mm): 20.60 29.15 38.80
F number: 2.88 2.88 2.88
Half angle of view (degree): 48.28 36.90 27.98
Image height (mm): 20.03 21.59 21.63
Lens length (mm): 123.99 113.14 107.70


Embodiment 4
Focal length (mm): 20.60 29.15 38.80
F number: 2.88 2.88 2.88
Half angle of view (degree): 48.28 36.90 27.98
Image height (mm): 20.03 21.59 21.63
Lens length (mm): 123.99 113.14 107.70


Embodiment 5
Focal length (mm): 28.85 46.44 72.67
F number: 2.88 2.88 2.88
Half angle of view (degree): 38.14 24.64 15.79
Image height (mm): 19.91 21.63 21.63
Lens length (mm): 140.00 140.00 140.00


Embodiment 6
Focal length (mm): 28.84 45.11 72.75
F number: 4.12 4.12 4.12
Half angle of view (degree): 38.13 25.27 15.78
Image height (mm): 19.92 21.63 21.63
Lens length (mm): 130.00 130.00 130.00