Photos taken on snorkel in Western Australia all in max 2 meters of water in the Swan river/estuary here.
GH4 in Nauticam housing, with the 8mm FE in Nauticam 3.5" dome and the Olympus macro 60mm in Nauticam macro port 65.
I heard the 8mm in 3.5" mini dome would vignet slightly, but it does not.
One handle removed from housing and Single INON S2000.
Nauticam housing is very good to use, both lenses are great as well.
I am finding quite some pink/green artefacts in my photos, also in low ISO, especially in smooth gradients of backgrounds.
Not sure if the GH4 has difficulty with that or if I might have to tweak some of my settings. This was something I did not notice that much in my old RX100 photos.
For the rest the GH4 in Nauticam is awesome to use.