Finally moving up from many years with my Nikon D90/Aquatica setup to a new D500/Nauticam setup. So far, 100% of my u/w photography has been large subjects using the Tokina 10-17 fisheye lens. For now, my photography will stay the same, so looking for port recommendations to use with my Tokina/Nauticam setup.
I'm leaning towards a glass (versus acrylic) port this time and looking at both Nauticam and Zen options. Currently looking at the Nauticam N120 140mm Optical Glass Fisheye Port, the Zen DP-100 100mm Fisheye Dome Port, and the Zen DP-170mm Fisheye Dome Port.
My Aquatica setup used the 8 inch (203mm) acrylic dome, so the larger sizes are not a concern. Photography is typically large sharks, rays, whales, etc.
Any advice or thoughts or other recommendations, please share.