N°89744 · Family detail
CosinaPrime·CANON RF mount·2023
Cosina Voigtlander Nokton 40mm F/1.2 ASPH RF
Specifications01
MountCANON RF
Focal length40mm
Max aperturef/1.2
TypePrime
Release year2023
Weight400 g
Filter size58 mm
Min focus distance0.3 m
Max magnification0.2041
Aperture blades10
Optical elements8
Groups6
AutofocusNo
StabilizationNo
Aperture controlAperture ring
Lens hoodScrew-type round
TeleconvertersNot available
EraDigital era
Production statusIn production
Additional Info02
Lens TypeWide-angle prime lens
Summary02
Cosina Voigtländer Nokton is a 40mm prime lens for Canon RF mirrorless cameras with a maximum aperture of f/1.2. Intended for general-purpose low-light and shallow depth-of-field photography.
AI-assisted summary — verify against linked sourcesWhere can this lens be adapted?
The Canon RF mount has a flange distance of 20 mm. A plain adapter fits a camera whose flange distance is at least 1.46 mm shorter. How lens adapters work
- Native lenses set the aperture, and often the focus, electronically. On a plain adapter they do not work. Use an electronic adapter made for this pair; for many pairs nobody makes one. Fully manual lenses are the exception.
- RF-S lenses cover APS-C only.
- Sony EAdapter · 2 mm
The camera mount (46.1 mm) is narrower than the lens mount (54 mm). A large rear element can darken the corners.
- Canon RFNative
- Nikon ZAdapter · 4 mm
- Fujifilm XAdapter · 2.3 mm
- Canon EF-MAdapter · 2 mm
No plain adapter reaches infinity focus on: L-Mount, Micro Four Thirds, Fujifilm G (GFX), Canon EF, Nikon F.
Other Mounts03
This lens family is also indexed in 2 other mounts.