The 40 mm/1:1.2 Nokton aspherical is a fast, manual lens. The lens is the world’s first 40mm full frame lens with an F1.2 aperture while maintaining its compact size. The optical design incorporates two aspherical lens elements so that you can enjoy reliable optical performance and soft bokeh at maximum aperture.
When used on cameras with an APS-C sensor, the focal length of 40 mm corresponds to approximately 60 mm, so the lens can be used universally as a standard lens on both full-frame cameras and APS-C cameras.
The aperture has an adjustment in 1/3 steps. The lens is equipped with the selective aperture control system to enable stepless adjustment of the aperture when recording video.
| Focal length when used with a full-frame camera |
40 mm |
| Aperture ratio |
F 1,2 |
| Smallest aperture |
F 22 |
| Optical design |
8 lenses in 6 groups |
| Optitical setup |
8 lenses in 6 groups |
| Angle of view |
55° |
| Aperture blades |
10 |
| Minimum distance |
0,35 m |
| Image scale |
1:6,2 |
| Max. diameter |
70,1 mm |
| Length |
59,3 mm |
| Mount |
E |
| Electrical contact: Transmission of Exif data |
available |
| Manual focus assist |
available |
| Weight |
420 g |
| Filter diameter |
Ø 58 mm |
| Colors |
black |
| others |
Selective aperture control system Standard lens hood, front cover, rear cover |
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