Why the hell is this about equivalence? As 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 intending to sell all your Fuji gear because the optically inferior FE lens is more affordable? https://fuji18854310.bloggadores.com/26718026/the-definitive-guide-to-link-fuji188