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Voigtlander Ultron 40mm f2 SL II Aspherical Review: Latest scores for alternative 3rd party standard prime for Nikon & Canon

By Paul Carroll - Thursday July 09 2015

Lens Review
Introduction | Voigtlander Ultron 40mm f2 SL II Aspherical Measurement: Ranks behind recent 35mm competition | Comparison 1: Voigtlander 40mm f/2 vs Nikon 35mm f/1.8G vs Sigma 35mm f/1.4 A | Comparison 2: Voigtlander 40mm f/2 vs Canon EF 40mm f/2.8 STM vs Canon EF 35mm f/2 IS USM | Voigtlander Ultron 40mm f2 SL II Aspherical Conclusion: Small and convenient with a top quality build
Voigtlander Ultron 40mm f2 SL II Aspherical Review: Latest scores for alternative 3rd party standard prime for Nikon & Canon

The $499 Ultron 40mm f2 SL II Aspherical is a standard focal length prime from legendary Viennese manufacturer Voigtlander. Despite its tiny proportions it promises to deliver excellent image quality scores in our industry standard lab tests. With the lab data in, recorded and verified our in-depth review analyses the results.

Voigtlander Ultron 40mm f2 SL II Aspherical Introduction: Apetite manual focus prime with a versatile focal length

The Voigtlander Ultron 40mm f/2 SL II Aspherical (Voigtlander 40mm f2) is a manual focus, ‘standard’ focal length prime lens available in Nikon and Canon mounts. Compatible with virtually all Nikon/Canon DSLRs and film SLRs, 40mm on full frame bodies offers a great focal length for a range of subjects including candid and street photography. On smaller crop sensors, the focal length extension to around 60mm makes it a little less versatile, but good for portraiture, particularly utilising the fast f/2 aperture. Despite being a manual focus lens, electronic coupling to DSLRs means metering, exposure and ISO data is passed to the camera, making the Voigtlander 40mm f/2 a very usable lens for DSLR photographers. The Voigtlander 40mm f/2 build quality and size are its big attractions as it feels like it’ll last a lifetime and at just 24.5mm in length and weighing 200g it’s very petite. Compare that to Sigma’s 35mm f/1.4 prime for example which, at 94mm in length and 665g in weight, is almost 4 times longer and over 3 times heavier. The Voitglander 40mm f/2 comes supplied with close-up lens adapter to reduce the minimum focus distance to 25cm and a magnification ratio of 1:4. The supplied lens hood also doubles as a 52-39mm step down filter adapter. 

Voigtlander Ultron 40mm f2 SL II Aspherical Measurement: Ranks behind recent 35mm competition

Comparison 1: Voigtlander 40mm f/2 vs Nikon 35mm f/1.8G vs Sigma 35mm f/1.4 A

Comparison 2: Voigtlander 40mm f/2 vs Canon EF 40mm f/2.8 STM vs Canon EF 35mm f/2 IS USM

Voigtlander Ultron 40mm f2 SL II Aspherical Conclusion: Small and convenient with a top quality build