15-45mm F2.8 and 18-105mm F2.8 for APS-C DSLR from RICOH [Patent]
RICOH filed a patent containing 15.5 - 43.7mm F2.9 and 18.5 - 101.9 mm F2.9 for APS-C DSLR cameras.
【公開番号】特開2020-154286(P2020-154286A) click here
【公開日】令和2年9月24日(2020.9.24)
【発明の名称】ズームレンズ系、交換レンズ及び撮影装置
Embodiment 8: 15-45mm F2.8
Focal length: 15.5~26.0~43.7 mm
F number: 2.9~2.9~2.9
Half angle of view: 44.3~28.4~17.6
Image height: 14.24 mm
Back focus: 35.592~50.304~67.802 mm
Embodiment 9: 18-105mm F2.8
Focal length: 18.5~43.5~101.9 mm
F number: 2.9~2.9~2.9
Half angle of view: 39.0~17.8~7.7
Image height: 14.24 mm
Back focus: 30.120~47.793~66.140 mm
【公開番号】特開2020-154286(P2020-154286A) click here
【公開日】令和2年9月24日(2020.9.24)
【発明の名称】ズームレンズ系、交換レンズ及び撮影装置
Embodiment 8: 15-45mm F2.8
Focal length: 15.5~26.0~43.7 mm
F number: 2.9~2.9~2.9
Half angle of view: 44.3~28.4~17.6
Image height: 14.24 mm
Back focus: 35.592~50.304~67.802 mm
Embodiment 9: 18-105mm F2.8
Focal length: 18.5~43.5~101.9 mm
F number: 2.9~2.9~2.9
Half angle of view: 39.0~17.8~7.7
Image height: 14.24 mm
Back focus: 30.120~47.793~66.140 mm