I saw, but many M lenses do not cover a 33x44 sensor - people have been trying with the Hasselblad X1D-50C.... john -----Original Message----- For those interested, a Leica M Module for the Alpa 12 - making the lenses usable with a 100MP back: https://www.alpa.ch/en/site/alpa-lens-module-leica-m Cheers Jayanand