The previously reported 7Artisans 4mm f/2.8 lens for Sony E, Fuji X, MFT, and Canon EOS-M mount is now officially announced and available for pre-order for $149. Update: now listed for sale also on Amazon. Here is the upcoming 7Artisans 4mm f/2.8 lens for E/FX/M43/EOS-M mounts Additional information: No related posts.