Bobbers vs depth

[tamas970]

Has anyone brought along a gopro bobber/float arm on deeper dives? I am considering to balance my rig (trust me, it's heavy...) with 2 cheap pieces from ebay, the question is,
where these things implode/loose +buoyancy?

 

[ronscuba]

Take a look at Stix buoyancy floats. I had one for my wide angle lens. They hold their buoyancy at depth. Adding buoyancy adds bulk and is generally limited to 1-1.5 pounds.

If the weight you are trying offset is the battery canister we talked about in the other thread, I still think the best option is to move the canister to your waist or chest. It can make entering/exiting the water more difficult, but adding 2 pounds or more of buoyancy to your rig is going to be very very difficult. Do you know how much weight you are trying to offset ?


Here is a pic of me with my halogen light setup. Battery canister is on my hip.

 

[tamas970]

I have to see if the cabling is long enough, btw yes, its mostly the canister. However, my camera gear (10bar housing for E-PL5 & 2xs2000 strobes) is also heavy. that definitely needs floats,
I'll look around.

 

[3D diver]

My camera rig (with my older lights) was 10 lbs so I made two floats with divinycell:

DIVINYCELL FOAM PVC from Aircraft Spruce

DIY Underwater Camera Floats & Strobe Arm Floats

Here's my DIY thread:

http://www.scubaboard.com/forums/gopro-video/425784-my-gopro-3d-setup.html

Skip to post #104 for the floats

I've since made a second rig with small lights...and smaller floats:

 

[Ting Tong]

Has anyone brought along a gopro bobber/float arm on deeper dives?

I have taken my gopro bobber to 30m, no issues.

 

[ronscuba]

My camera rig (with my older lights) was 10 lbs so I made two floats with divinycell:..

10 lbs topside or 10 lbs negative UW ?

 

[3D diver]

Topside (bathroom scale). With the floats it's slightly positive on the surface and neutral at depth.