18mm f/4 for APS-C sensor from PANASONIC [Patent]
PANASONIC filed a patent of 18mm f/4 for APS-C sensor.
Do they have a plan of L-mount camera with APS-C sensor?
【公開番号】特開2019-15827(P2019-15827A) click here
【公開日】平成31年1月31日(2019.1.31)
【発明の名称】単焦点撮像光学系、撮像装置、カメラシステム
Specification and lens arrangement of embodiment 1
Focal length: 18.0157 mm
F number: 4.10720
Half angle of view: 38.5407
Image height: 13.2000 mm
Lens length: 34.5079 mm
Back focus: 15.18901 mm
This lens is able to make as an interchangeable one for mirrorless.
"204" and "304" are lens mount.
Do they have a plan of L-mount camera with APS-C sensor?
【公開番号】特開2019-15827(P2019-15827A) click here
【公開日】平成31年1月31日(2019.1.31)
【発明の名称】単焦点撮像光学系、撮像装置、カメラシステム
Specification and lens arrangement of embodiment 1
Focal length: 18.0157 mm
F number: 4.10720
Half angle of view: 38.5407
Image height: 13.2000 mm
Lens length: 34.5079 mm
Back focus: 15.18901 mm
This lens is able to make as an interchangeable one for mirrorless.
"204" and "304" are lens mount.
This is the patent of the optical formula of the Leica Elmarit-TL 18mm f/2.8 Asph, just compare example 2 and 3 from the patent (which are 18mm f/2.8 lenses, only example 1 is an 18mm f/4) with the Elmarit-TL。
http://fr.leica-camera.com/content/download/145083/2455739/version/13/file/Datenblatt_Elmarit-TL+18mm_en_Nov2017_5.pdf
by Mistral75 (2019-05-03 06:07)
> Mistral75
Thanks for the important information!
The L-mount alliance seems to be the support team for Leica by Panasonic and Sigma。
by hi-low (2019-05-03 13:13)