| My preference is for slight positive buoyancy - and I mean slight, just enough so if you let go the camera heads upward eventually, more chance of recovering a lost camera on the surface than in the depths in my opinion.
Other than that, Rob was spot on and all I can add is a suggestion that you don't use too much O ring grease, just enough to lubricate the ring but not enough to see it on there, and leak test the assembled housing prior to each dive. Before you get in the water submerge the camera for 2 secs (Hang it over the side of the RIB or use the camera rinse tank) and check for bubbles, then pull it out and check for water inside, then repeat but submerge the camera for 30sec. No bubbles and no water inthe housing and you've peace of mind. |