Will ND filters for the phantom 4 and/or the phantom 4 professional fit the phantom 3 professional? A friend of mine has these (see pic) and they fit my P3P but it says “Phantom 4 edition” and he’s not sure if that means the P4 and P4 lenses will fit the P3P. I want to order some more for my P3P but I’m seeing lots for the phantom 4 and not much for phantom 3.