Photo: alf sigaro (CC BY-SA 2.0)
Quick answer
The Voigtlander Ultron 40mm f/2 SL IIS Aspherical is a standard prime lens covering 40mm at f/2.0 for the Canon EF mount. Its fast maximum aperture helps in dim light and gives good subject separation.
About this lens
A 40mm f/2 fast standard prime lens, the Voigtlander Ultron 40mm f/2 SL IIS Aspherical is designed for Canon EF mount bodies, with aspherical elements. The natural field of view suits street, documentary and everyday photography.
Voigtlander Ultron 40mm f/2 SL IIS Aspherical specifications
- Brand
- Voigtlander
- Mount
- Canon EF
- Focal length
- 40mm
- Maximum aperture
- f/2.0
- Lens type
- Prime
- Optical construction
- 6 elements in 5 groups
- Aperture blades
- 9
- Autofocus motor
- none
- Minimum focus distance
- 0.25 m
- Filter thread
- 52 mm
Specification source: cosina.co.jp
What can you shoot with the Voigtlander Ultron 40mm f/2 SL IIS 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.
Full-frame equivalent and field of view
Calculated from the focal length and crop factor. Not measured.
| Sensor | Crop | Equivalent | Horizontal FOV | Diagonal FOV |
|---|---|---|---|---|
| Full frame | 1.0x | 40mm | 48.5° | 56.8° |
| APS-C | 1.6x | 64mm | 31.4° | 37.4° |
Frequently asked questions
What mount does the Voigtlander Ultron 40mm f/2 SL IIS Aspherical use?
It uses the Canon EF mount, so it fits Canon EF cameras directly.
What is the focal length of the Voigtlander Ultron 40mm f/2 SL IIS Aspherical?
It is a fixed 40mm lens with a maximum aperture of f/2.0. That makes it a standard lens.
Is the Voigtlander Ultron 40mm f/2 SL IIS 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 Ultron 40mm f/2 SL IIS Aspherical equivalent on a crop sensor?
On APS-C (1.6x crop) it frames like 64mm on full frame, with a 31.4° horizontal and 37.4° diagonal field of view. These figures are calculated from the focal length and crop factor.
Which cameras does the Voigtlander Ultron 40mm f/2 SL IIS Aspherical fit?
Any Canon EF-mount camera, including Canon EOS 1D X, Canon EOS 5D, Canon EOS 5D Mark II, Canon EOS 5D Mark III, and Canon EOS 5D Mark IV and 7 more.
Alternatives for Canon EF from other brands
All Canon EF lensesSame mount, overlapping focal range, closest maximum aperture first.
