Good news folks! Cosina will soon announce a new lens for EOS R system cameras aka RF Mount. The new ultra-fast prime lens would be the Cosina Nokton 50mm f/1 lens.
Cosina will soon release a NOKTON RF 50mm f/1 aspherical lens, along with other new prime lenses. Indeed, we expect 5 new lenses, these:
- NOKTON 50mm F1 Aspherical RF-mount
- NOKTON 35mm F0.9 Aspherical X-mount
- NOKTON 55mm F1.2 SLIIs
- ULTRON 27mm F2 X-mount Black
- ULTRON 27mm F2 X-mount Silver
Here are the specifications for the NOKTON 50mm f/1:
| Focal length | 50mm |
| Maximum aperture | 1:1 |
| Minimum aperture | F16 |
| Lens configuration | 7 groups 9 elements |
| Angle of view | 48.0° |
| Number of diaphragm blades | 12 |
| Shortest shooting distance | 0.45m |
| Maximum shooting magnification | 1:6.9 |
| Maximum diameter x total length | Φ79.3×64.0mm |
| Filter size | Φ67mm |
| Weight | 650g |
| Lens hood | Dedicated screw-in hood included |
| Aperture ring | Equipped (manual aperture) |
| Electronic contacts | Available |
| Exif information | Correspondence |
| Other | Selective Aperture Control System |
via Digicame-Info