Why the hell is this about equivalence? In terms of I realize if you have a Fuji camera you can't set 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 much less expensive? https://linkfuji18833219.shotblogs.com/the-definitive-guide-to-link-fuji188-40930583