I've used an Aquatech DV4 with a canon 1d, as a pole camera held outside the cage to photograph white pointers as they approach caged divers ( in False Bay Capetown).
I want to do the same with a smaller underwater housing using a canon 5D. Can someone suggest a suitable housing, that can go to 25m and also be used as a pole camera. (Aquatech is certified to 10m). The housing has to have, or be capable of being modified to have, a remote release cable and a watertight HDMI cable that plugs into a video screen to view what is happening underwater.
Thanks.