The Jacques Cousteau Studio Camera
They were shown at the recent photo Live Expo 2016, though not in their native element. To be fair, it would have been a bit much to expect the Novotel Langley Hotel to provide a 20 metre tank in their functions room, and even taking the cameras to the restrooms and plunging them into toilets would probably not go down well with the cleaning staff.
So in the end, they were displayed out on dry tables, with a variety of housings, lights, and accessories. The visual effect was stunning.
I know these things - I've seen the movies of Captain Nemo.
Witness, therefore the profusion of clips, handles, knobs, and struts on the Nautical equipment. Buried inside each of the large housings is a modern digital camera and surrounding it is O-rings, seals, pressure glands, and feeler arms. There is bound to be a way of doing nearly everything that a dry camera does, but it will be done with larger controls.
Note the twin lights on some models - it is dim down there and extra light is a must for any successful action filming. The modern-day LED light chip is as much an advance over tungsten bulbs as was the strobe light tube over flashbulb guns.
The modern performance cameras that run at ISO's over 1600 must be a boon to the underwater shooter. That and autofocus mechanisms that can be depended upon to cope with movement and tricky lighting situations. The fact that they can also cope with these things on ' dry ' land under rainy conditions is a bonus.