it took some time, but now i made my own zoom gear 12-50 / focus gear 60mm makro, a new cap for the Nauticam port (12-50 + 60mm). Additionaly a snoot, filter holders for fluo-dives and cavemarker. These tools are build on my 3D printer.
The tools were tested on my Komodo-trip: http://marine-snapsh... Photos/Komodo/
So if someone is interested just send me a message :-).