Voigtlander Ultron 40mm f/2 SL II (Canon EF) - Review / Lab Test Report
Lens Reviews - Canon EOS (Full Format)
Saturday, 28 January 2012 14:00
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The lens was kindly provided for testing purposes by Walter Greifenstein!


Pancake lenses are hot sellers in the mirrorless system world but unfortunately there're only a handful avaiable for full format DSLRs. As of the time of this review only Voigtländer offers two of such lenses in Canon EF mount and today we will have a look at the Voigtlander Ultron 40mm f/2 SL II. We already reviewed the lens quite a while ago on Nikon DX but we were curious how the lens performs on a full format camera. Like all SL II lenses it is a manual focus lens but it is fully coupled so a camera-controlled aperture, focus confirmation and EXIF information are all available. The Ultron is basically a standard lens with typical applications such as street and low light photography.

The build quality of the lens is absolutely beautiful. The outer barrel is made of metal and it's a pure joy to use the well-damped focus ring. Unlike on other pancake lenses manual focusing is also doable without major obstacles. The lens extends a bit when focusing towards closer distances and the front element does not rotate. The tiny but efficient dome-type lens hood can remain mounted without any significant increase in length.

Optical construction6 elements in 5 groups inc. 1 aspherical element
Number of aperture blades9
min. focus distance0.45 m (max. magnification ratio 1:7)
Dimensions63 x 25 mm
Weight200 g
Filter size52 mm (non-rotating)
Hoodincluded, dome shaped (screw-in)
Other featuresclose up lens for 0.25 m (1:4 magnification) included