Fujifilm has filed a patent for a new wide-angle lens in Japan. The new patent describes a XF 13mm F1.8 lens designed for company’s APS-c size sensor X-series mirrorless cameras.
It is a 20mm equivalent focal length wide-angle prime optic with a bright aperture of f/1.8. However the patent application refers to a Fujinon XF 13mm f/1.8 when considering the crop factor.
It seems that a new Fujinon XF 13mm f/1.8 lens is in the works. Even the translation is not perfect this also explains the significant savings on the Fujinon XF 14mm F2.8 R model.
Fujifilm patent for 20mm equiv XF 13mm F1.8 lens
The wide-angle optic has 4 ED elements and the lens construction is made of 11 elements in 9 groups. Here are the patent details of the lens translated by machine.
DESCRIPTION, SELF-INTERPRETATION OF THE PATENT LITERATURE
- Patent Publication No. 2016-95461
- Published 2016.5.26
- Filing date 2014.11.17
- Example 1
- Focal length 1mm
- Bf 2.08 – 2.05 – 1.94
- FNo 1.90 -. 1.92 – 2.00
- Full angle of view 2ω 95.2 – 94.4 – 91.2
- Lens configuration 9 groups 11 sheets
- ED 4
- Fujifilm patents
- Negative-positive ShiboTadashi, or negative-positive Shibomake
- Rear focus
Fuji is very busy in 2016 but the official lens roadmap doesn’t include a XF 13mm F1.8 lens in near future. If there will be an optic like this we won’t see it until 2017. So stay tuned with us for for information!