elbig
Contributor
I am in the boat ( so to speak) and I am leaning towards the TG5. Macro plus good video. Seems like a reasonable compromise feature/functionality and price wise.
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As for the floats, FYI, I am using 8 jumbo Stix floats on this rig, the max I can fit on the 4 8” arms. My rig is negatively bouyant by about 1.5-1.7lbs in fresh water
Have you considered using float arms rather than foam blocks? I use these, for the reference. The floats you mentioned are rated at 181g of lift each, so 1448g total, and you need about 600g more, maybe a bit less after substracting the Ultralight arms, so call it 1000-1100g per side. 2x7"/80mm plus 2x8"/80mm should just about do it.
My current profession is professional photography; 5D Mark IV, with all the bells, whistles and then some. That said, if I could take my camera down with me it would with a 24 to 70 mm and two strobes. That said, I'm not sure if underwater photography is going to become a thing with me. I'm not confident going down with a bulky system. However, my end goal is to to create a art. Beautiful unique pics. I'm not super video oriented at the moment, I fear it would pull from the experience too much.