Why the hell is this about equivalence? So far as I am aware When you've got a Fuji camera you can't put a Sony FE 28mm f2 on it anyway. Will you be intending to sell all your Fuji gear because the optically inferior FE lens is more affordable? No, https://link-fuji18876421.develop-blog.com/32939292/the-basic-principles-of-fuji188