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Canon EF 40mm f/2.8 STM
Canon EF 40mm f/2.8 STM

Comparison: Canon 40/2.8 STM vs Voigtlander 40mm f/2 SL II

Here are compared the Canon EF 40mm f/2.8 STM (new in 2012) to the Voigtlander 40mm f/2 SL II. Both lenses are “pancake” lenses. The Voigtlander is manual focus and very nice to use in that mode. The Canon 40/2.8 is lousy for manual focus (twitchy), but offers autofocus.

Test scene

The 22-megapixel Canon 5D Mark III was used here. Live View with focusing loupe was used for precise focus.

The Canon 40mm offers a wider field of view by about 5%. Nominally calling the Canon 40/2.8 a 40mm, this would make the Voigtlander a 42mm lens. The difference is significant enough to make pixel-level sharpness comparisons less straightforward; some mental adjustment must be made when comparing.

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