Why the hell is this about equivalence? So far as I do know When you've got a Fuji camera you can't put a Sony FE 28mm f2 on it anyway. Do you think you're about to provide all your Fuji gear because the optically inferior FE lens is more affordable? https://linkfuji18888653.mdkblog.com/32585903/the-basic-principles-of-fuji188