Is your dSLR setup neutrally buoyant underwater? If so please tell me your setup (camera, housing, tray/arms, make/model of strobes). if you can shoot with one hand, please let me know that also. (not sure if that is possible with a dSLR setup, lol).
if not, what is making it negative? is it the housing, or the strobes, etc. how negative is it?
In the case of my 14mm (1.2 pounds) and dome port the unit is slightly negative but the balance isn't optimal since the dome wants to be "on top". this is a function of the compact housing (UK-Germany) and a fairly heave camera (Canon 5D)
I also travel with an 85mm Canon lens which is 2.3 pounds and when I put that inthe housing it is much less likely to tip.
The same camera and housing with the ring flash is nicely balanced and very slightly negative.
Most of the folks I meet are in the "slightly negative" camp. I've tried to offset some of the negativeness of my heavier setup and did notice the difference.
