Why the hell is this about equivalence? So far as I understand When you've got a Fuji digicam you can't put a Sony FE 28mm f2 on it anyway. Do you think you're about to provide all your Fuji gear since the optically inferior FE lens is more cost-effective? No, https://fuji18832098.eedblog.com/27029641/facts-about-link-fuji188-revealed