Zoom lens with control optics of image field curvature from CANON

CANON filed a patent of zoom lenses with control optical unit of image field curvature.

【公開番号】特開2018-159876(P2018-159876A) click here
【公開日】平成30年10月11日(2018.10.11)
【発明の名称】アタッチメント光学系、撮像光学系、および、撮像装置

Specification and lens arrangement of embodiment 1
Zoom ratio: 2.88
Focal length: 18.58 - 53.49 mm
F number: 3.56 - 5.87
Angle of view: 36.32 - 14.32
Image height: 13.66 mm
Lens length: 126.24 mm
Back focus: 11.55 mm


Optical arrangement at minimum effect

Wide, minimum effect

Tele, mimimum effect


Optical arrangement at maximum effect

Wide, maximum effect

Tele, maximum effect