This is I think the solution moses is using. We came up with this idea two years ago.
I have also used the monopod option which is just having ball segments on the bottom of the tray and a single 8" arm segment on the back.
For macro it is essential this is a trip to lembeh few years ago where I used this set up
The octopus are hand held but look at the smaller stuff (not on a wall)
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