N°102992 · Family detail
CosinaPrime·SONY E mount·2026
Cosina Voigtlander SEPTON 40mm F/2 ASPH E
Specifications01
MountSONY E
Focal length40mm
Max aperturef/2
TypePrime
Release year2026
Weight165 g
Min focus distance0.3 m
Max magnification0.1887
Aperture blades10
Optical elements7
Groups6
AutofocusNo
StabilizationNo
Aperture controlAperture ring
Lens hoodScrew-type round
TeleconvertersNot available
Production statusIn production
Additional Info02
Lens TypePrime lens
Summary02
Voigtländer SEPTON 40mm F/2 is a standard prime lens for Sony E cameras, using a fixed f/2 aperture for general-purpose photography. It’s intended for everyday use rather than zooming.
AI-assisted summary — verify against linked sourcesWhere can this lens be adapted?
The Sony E mount has a flange distance of 18 mm. A plain adapter fits a camera whose flange distance is at least 1.46 mm shorter. How lens adapters work
- Sony lenses named "E" (not "FE") cover APS-C only.
- 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.
- Sony ENative
- Nikon ZAdapter · 2 mm
No plain adapter reaches infinity focus on: Canon RF, Fujifilm X, L-Mount, Micro Four Thirds, Fujifilm G (GFX), Canon EF-M, Canon EF, Nikon F.
Sources03
thelensdb.comVisit ↗
Other Mounts03
This lens family is also indexed in 1 other mount.