A big advantage of the Kraken bulkhead over the Nauticam one is that the Kraken is compatible with a higher number of Nauticam housings than the Nauticam plug because the cable on the Nauticam is not removable and the one on the Kraken is which makes a huge difference in favor of Kraken.

I experienced this on the NA-GH5: the 90° USB-C plug simply won't go through the M16 port while on other housing like NA-Z8, it inserts well into the M16. The difference on the housing is just the thread length on the NA-GH5 that is longer than its equivalent on NA-Z8. I wish Nauticam has made a bulkhead with a removable cable. I've solved this issue on the NA-GH5 by using Kraken bulkheads. With the proper adapter (like I it), you can even fit it on a M14 port.

14 hours ago, OneYellowTang said:

@Dave_Hicks

It might just be me ;)

I religiously change the battery in my Z-8 after each morning of 2 dives. I can stretch i to 3, but at that point I might miss a few shots at the end of a dive. I also always change before going black water diving.

With the various updates I have noticed the battery draw getting better, however not to the point I'm trying 4 dives on a single charge. With the ENL-15C battery my older D850 can shoot multiple days without concern (my son is shooting with this camera now).

Do you use the EVF exclusively, or do you use the back screen? And do you have the camera in Airplane Mode? I also rotate between 3 batteries to reduce wear.

I only use the EVF, which I suspect uses less power than the rear screen. And no need for wifi/bluetooth underwater. Even shooting some video for a few minutes across dives, I've still only run down the Z8 to zero once in about 300 dives with it to date. I was stretching it out on a 4-dive day and had several rapid action encounters were I really racked up the shutter count.