Thank you for your comment and question. In Alor, I was using a Gopro 10 underwater and a Gopro 9 on the boat. Underwater, I used a tray with one touch. Hope this helps
I don't use a red filter. Depending on how deep you go, the gopro 10 is good for adjusting colour. I also adjusted colour post production. Light wise, I have a handheld torch attached to a tray. Nothing fancy. If you look at my Philippines videos, I used a torch held in my hand. During the Alor trip I progressed to 1 torch and a tray. For the Komodo videos, I had progressed to 2 torches and a tray. I hope this helps.
Nicely edited to give a good quick impression of what can be expected on the first day of arrival. Hoping for some muck chapters at Lothars place at night which is my favorite of all