The 40mm focal length

Kobayashi Hirofumi, The President of Cosina Voigtlander and I have one thing in common. A love for the 40mm focal length.  Ever wondered why Voigtlander have both a 35mm AND 40mm f/1.4 lens in their m-mount collection, which look virtually identical? This is why.

There is also an SLR 40mm lens.

I've never been quite sure why I like a 40mm, and the similar field of view from 20mm in m4/3 and 28mm in APS-C (which is usually the closest I can get) but it seems to be just right for what I want to include in a picture. 35mm and the standard 50mm are pretty close, but not quite there. One day I might work this out, but if I could choose one focal length to have to use all the time this would be it. 

N.B. to see more on the cameras and lenses featured in this post click on the relevant labels (tags and keywords) below.

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