The screw drive focus of the 10-17 Tokina does not work with Nikon mirrorless with an FTZ adapter. I have added a manual focus control to an 8" Aquatica dome. I use it on a Nauticam housing with the now discontinued Aquatica to Nauticam adapter. I use it mostly for over/under where you can prefocus on the underwater part and, at f16, see the in-focus blinkies in the above water part. The zoom gear is custom made and is a push-fit on the lens. The focus gear is held in place with a rubber tensioning band. The price, US$1100, includes the Aquatica dome with MF control, neoprene dome cover, two dome shades, Aquatica to Nauticam adapter, Tokina 10-17 lens, Nauticam-fit custom zoom gear, home made focus gear. I note that the most recent Tokina 10-17 lenses have a an AF/MF switch near the bottom. I don't think this zoom gear will fit without some modification. It fits well on this older model. I won't sell the port adapter separately.
