58mm F1.4 for 35mm full-frame DSLR with a controllable soft-focus value from CANON

CANON filed a patent for lenses with a controllable soft-focus value.

【公開番号】特開2018-97240(P2018-97240A) click here
【公開日】平成30年6月21日(2018.6.21)
【発明の名称】光学系、光学機器および撮像装置

Specification and lens arrangement of embodiment 1
Focal length: 57.58 mm
F number: 1.43
Half angle of view: 20.60
Image height: 21.64 mm
Lens length: 160.04 mm
Back focus: 40.43 mm