70mm F2, 80mm F1.8 and F2, 85mm F2, 100mm F2 for mirrorless cameras from CANON

CANON filed a patent describing optical designs of medium telephoto lens for 35mm full-frame mirrorless cameras.

【公開番号】特開2021-39304(P2021-39304A) click here
【公開日】令和3年3月11日(2021.3.11)
【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: 82.45 mm
F NUMBER: 2.06
HALF ANGLE OF VIEW: 14.70
IMAGE HEIGHT: 21.64 mm
LENS LENGTH: 104.87 mm
BF: 17.60 mm


Embodiment 2
FOCAL LENGTH: 82.48 mm
F NUMBER: 1.86
HALF ANGLE OF VIEW: 14.70
IMAGE HEIGHT: 21.64 mm
LENS LENGTH: 98.50 mm
BF: 16.84 mm


Embodiment 3
FOCAL LENGTH: 82.50 mm
F NUMBER: 2.06
HALF ANGLE OF VIEW:14.69
IMAGE HEIGHT: 21.64 mm
LENS LENGTH: 102.08 mm
BF: 14.92 mm


Embodiment 4
FOCAL LENGTH: 99.80 mm
F NUMBER: 2.06
HALF ANGLE OF VIEW: 12.23
IMAGE HEIGHT: 21.64 mm
LENS LENGTH: 118.38 mm
BF: 21.99 mm


Embodiment 5
FOCAL LENGTH: 70.50 mm
F NUMBER: 2.06
HALF ANGLE OF VIEW: 17.06
IMAGE HEIGHT: 21.64 mm
LENS LENGTH: 94.86 mm
BF: 17.89 mm


Embodiment 6
FOCAL LENGTH: 85.00 mm
F NUMBER: 2.06
HALF ANGLE OF VIEW: 14.28
IMAGE HEIGHT: 21.64 mm
LENS LENGTH: 100.82 mm
BF: 16.76 mm