Neutral Bouyancy on DSLR rigs in Photography Gear and Technique Posted April 9 I like what Tim showed and have seen that idea used before. I attach a computer to the camera also and that provides a nice place to do so. However, I also have found that if I need massive lift, the big Nauticam carbon arms help. They are about 650 gr each. I am not sure, but I suspect because of the mounting ball for a focus light, the location of the fiber optic bukhead and the need for access to the vacuum button, I don't think the extra arm over the housing would work. On the other hand, I do have a rope handle that I use to hand up the rig to the boat and I have wondered about finding a way to attach a couple floats to each end of that. I normally stow it while in the water, but there is no real reason for that. A couple of zip-tied Stix floats of whatever size is needed should add up to 360g flotation and is easily removed.