I'm still trying to find a supplier for the e-ND that can make a larger piece so slightly back burnered at the moment while I concentrate on other things. The electronic part does work in concert with my other controllers such as this one (and the app as well actually) so when it happens it will be integrated. Currently, the size of the glass that I have is only really suitable for in mount versions, which is a bit of an issue with cameras such as the P4K which relies on speed boosters