Seems like everyone except Canikon (and Sony) realise that there might be a market for fast APS-C primes, especially at the wide end... oh well Canon, keep knocking out the kit zooms and macro normals.
And zero mention of EF-S or FX compatibility. Looks like another 'DC DN' lens that's just for E-mount and m43 unless I'm missing something. The 30mm f/1.4 DC DN C was similar.
i believe none of the DN series lenses have an AF/MF switch
i'm also waiting for sigma to make these DN lenses for the EF-M mount...
i think the only third party autofocus lens for EF-M is the tamron 18-200, or are there others as well?