The reshade I was using caused it. I didn't realise sooner because the DOF persisted even when I toggled the reshade off, so I figured it couldn't be that. When you asked if I was using reshade, I tried deleting everything reshade-related just to be sure, and that made it go away. For some reason the toggle reshade key toggled off everything apart from DOF :O (?). Sorry for bothering you about something that wasn't .ini related at all, I appreciate the willingness to help:)