Here is the upcoming 7Artisans 4mm f/2.8 lens for E/FX/M43/EOS-M mounts



Here is more information on the upcoming 4mm f/2.8 lens for E/FX/M43/EOS-M mounts from 7Artisans:

It seems that 7Artisans is going to release a 4mm f/2.8 drone lens and another cinema lens