Zoom lenses for a m4/3 sensor from CANON

CANON filed a patent describing zoom lenses for m4/3 sensor mirrorless cameras.

【公開番号】特開2021-183997(P2021-183997A) click here
【公開日】令和3年12月2日(2021.12.2)
【発明の名称】ズームレンズおよび撮像装置

Embodiment 1
Zoom ratio: 9.70
Focal length (mm): 17.51 87.85 169.87
F number: 2.27 4.40 4.63
Half angle of view (degree): 31.70 7.02 3.64
Image height (mm): 10.82 10.82 10.82
Lens length (mm): 129.45 129.45 129.45
Back focus (mm): 21.20 11.01 6.13


Embodiment 2
Zoom ratio: 19.70
Focal length (mm): 14.26 117.92 280.89
F number: 2.88 5.38 5.77
Half angle of view (degree): 37.19 5.24 2.21
Image height (mm): 10.82 10.82 10.82
Lens length (mm): 181.14 181.14 181.14
Back focus (mm): 19.35 10.59 6.46


Embodiment 3
Zoom ratio: 9.70
Focal length (mm): 14.43 75.84 139.93
F number: 1.85 4.80 5.15
Half angle of view (degree): 36.86 8.12 4.42
Image height (mm): 10.82 10.82 10.82
Lens length (mm): 156.33 156.33 156.33
Back focus (mm): 19.33 8.31 6.13


Embodiment 4
Zoom ratio: 14.55
Focal length (mm): 8.77 65.57 127.58
F number: 2.88 4.90 4.63
Half angle of view (degree): 36.33 6.45 3.32
Image height (mm): 6.45 7.41 7.41
Lens length (mm): 124.59 124.59 124.59
Back focus (mm): 18.01 6.17 6.17


Embodiment 5
Zoom ratio: 4.60
Focal length (mm): 17.51 53.31 80.54
F number: 2.27 3.00 3.38
Half angle of view (degree): 31.71 11.47 7.65
Image height (mm): 10.82 10.82 10.82
Lens length (mm): 129.35 129.35 129.35
Back focus (mm): 24.93 10.99 6.14