Why the hell is this about equivalence? So far as I am aware if you have a Fuji camera you can't put a Sony FE 28mm f2 on it anyway. Do you think you're intending to provide all your Fuji gear because the optically inferior FE lens is less expensive? https://fuji18832087.tblogz.com/5-tips-about-fuji188-you-can-use-today-41270095