Why the hell is this about equivalence? So far as I'm sure For those who have a Fuji digicam you can't put a Sony FE 28mm f2 on it anyway. Will you be going to market all of your Fuji equipment as the optically inferior FE lens is less expensive? https://arthurudkpw.nizarblog.com/27116831/the-best-side-of-fuji188