Voigtlander Sony E mount Standard prime
Voigtlander Septon 40mm F2 Aspherical
Quick answer
The Voigtlander Septon 40mm F2 Aspherical is a standard prime lens covering 40mm at f/2.0 for the Sony E mount. Its fast maximum aperture helps in dim light and gives good subject separation.
- Full frame
- APS-C (60mm equiv.)
- 52 Sony E cameras
- Focal
- 40mm
- Aperture
- f/2–22
- Weight
- 165g
- Filter
- 52mm
- Min focus
- 0.3m
- AF motor
- None
What 40mm sees
- Full frame crop 1.0×
- 56.8° 48.5° horizontal
- APS-C crop 1.5× → 60mm
- 39.7° 33.4° horizontal
Diagonal angle of view. Frames drawn to scale at 40mm. Calculated from the focal length and crop factor, not measured.
Open the field-of-view calculatorVoigtlander Septon 40mm F2 Aspherical specifications
Optics
- Focal length
- 40mm
- Maximum aperture
- f/2.0
- Minimum aperture
- f/22
- Optical construction
- 7 elements in 6 groups
- Aperture blades
- 10
Focus
- Autofocus motor
- None
- Minimum focus distance
- 0.3 m
- Maximum magnification
- 0.19×
Physical
- Filter thread
- 52 mm
- Weight
- 165 g
- Length
- 30 mm
- Diameter
- 61.7 mm
General
- Brand
- Voigtlander
- Mount
- Sony E
- Lens type
- Prime
Specification source: cosina.co.jp
What can you shoot with the Voigtlander Septon 40mm F2 Aspherical?
At 40mm this is a standard prime, which typically suits:
- Everyday and street photography
- Natural-perspective portraits
- Documentary and travel work
Its fast maximum aperture helps in dim light and gives good subject separation.
Frequently asked questions
What mount does the Voigtlander Septon 40mm F2 Aspherical use?
It uses the Sony E mount, so it fits Sony E cameras directly.
What is the focal length of the Voigtlander Septon 40mm F2 Aspherical?
It is a fixed 40mm lens with a maximum aperture of f/2.0. That makes it a standard lens.
Is the Voigtlander Septon 40mm F2 Aspherical a prime or a zoom lens?
It is a prime lens with a fixed 40mm focal length. Primes usually open wider than zooms; this one opens to f/2.0.
What is the Voigtlander Septon 40mm F2 Aspherical equivalent on a crop sensor?
On APS-C (1.5x crop) it frames like 60mm on full frame, with a 33.4° horizontal and 39.7° diagonal field of view. These figures are calculated from the focal length and crop factor.
Which cameras does the Voigtlander Septon 40mm F2 Aspherical fit?
Any Sony E-mount camera, including Sony A1, Sony A3000, Sony A5000, Sony A5100, and Sony A6000 and 47 more.
Alternatives for Sony E from other brands
All Sony E lensesSame mount, overlapping focal range, closest maximum aperture first.
