Hope this is relevant to the topic and maybe makes the discussion relevant to more readers.
I have been really enjoying taking underwater photos with a waterproof point-and-shoot (Nikon Coolpix W100) for the past couple years and am curious what it would take to upgrade to get higher quality images. This camera’s flash just illuminates all the dust in the water between the lens and the subject plus of course the photos are P&S quality. On the other hand I don’t want to spend too much money on it because it does what I need for iNatting and I’m also wanting to upgrade my terrestrial photography equipment…
What options are out there? Would something like the TG-4 be the next step?