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Buoyancy Float Arms

Discussion in 'The Nikon Niche' started by dm_junkie, Aug 25, 2019.

  1. dm_junkie

    dm_junkie Nassau Grouper

    # of Dives: 200 - 499
    Location: Sinagpore-Malaysia
    105
    2
    18
    Hi,

    I just upgraded from my point and shoot with an old DSLR. The current air weight of the setup without any arms, strobe and light is about 3.7KG.

    This weight to go underwater it will probably be around 2.4 KG underwater. But it strain my weaker arms to maintain the stability especially to shoot anything macros.

    I tried researching for suitable float arms to reduce the weight under water or a comfortable weight in which most veterans like you. In youtube, saw basic method to achieve neutral buoyancy but that about it.

    So, without other strobes and arms to be added yet, I thought of just going for a pair of float arms (partly due to budget) and then decide when I invest in a strobe ... etc later on.

    a) What is the comfortable negative weight after introducing the float arms?

    b) Any one tried float foam and if they are more effective? I felt that keeping the skeletal ball joints makes adjustments much easier.

    thank you all.
     
  2. Compressor

    Compressor ScubaBoard Supporter Staff Member ScubaBoard Supporter

    # of Dives: 1,000 - 2,499
    Location: NYS
    2,819
    1,289
    113
    For myself, I want my rig to be about neutrally buoyant What the setup does is based on what port I have on the housing. A big dome port and it's + and with a smaller port not so much.

    What set up do you have?
     
  3. Searcaigh

    Searcaigh Chromodoris gordonii Staff Member ScubaBoard Supporter

    # of Dives: 1,000 - 2,499
    Location: Dubai, UAE
    5,514
    4,116
    113
    When I was younger it wasn't a problem to use my F3 in a Tussey steel housing + ULC skeletal arms.

    I eventually got float arms several years ago as I felt the weight of the housing was getting too much.

    Tried the spongy type add ons, didn't appear to do anything, waste of money!

    I use a combo of short Inon and long ULC arms which gives me neutral buoyancy now. My wide angle set up uses smaller Inon float arms compared to the set up with the 105mm macro.

    Housings are Sea&Sea for D300 and D7100.
     
  4. diversteve

    diversteve moderatorem noster omnipotens

    # of Dives: I'm a Fish!
    Location: everywhere
    25,848
    5,520
    113
    If you want float arms, these are good.
    Stix Underwater Buoyancy Strobe Arms & Floats
    Like what? Open cell foam like used in pool toys compresses and becomes less buoyant at depth.
     
  5. dm_junkie

    dm_junkie Nassau Grouper

    # of Dives: 200 - 499
    Location: Sinagpore-Malaysia
    105
    2
    18
    Hi, yes, but there are also closed cell ones. For typical dives to 40m or less when these float foam are rated to more than 100m , wouldn't that be negligible?
     
  6. dm_junkie

    dm_junkie Nassau Grouper

    # of Dives: 200 - 499
    Location: Sinagpore-Malaysia
    105
    2
    18
    Sorry for the late reply. Am using a Nexus D90 and a 105mm lens. Yet to purchase any strobes but will make do with a light or two for now.
     

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