Interesting post and video... yes, film can be fun, but you will not find many underwater photographers using it much any more. It is often hard to find developing labs and developing film is expensive.
I have a good collection of Nikonos cameras and lenses that are still serviceable underwater. In addition, I also have a couple of housed Nikon film cameras (Nikon N8008s and Nikon F100). Prior to the beginning of the major pandemic shutdown stuff in 2019, I would occasionally pack a Nikonos or the N8008s on dive trips.
I started diving back in 1989 when film cameras were the only option for underwater still photography. The problem I had when I started trying to capture images underwater with Nikonos cameras was that I could not dive enough to learn the cameras. When I relocated about twelve years ago to a location making more frequent dive travel possible, I unpacked the Nikonos equipment and started working with it again. I also invested in the equipment I needed to capture underwater images digitally as well.
My occasional underwater use of film helped me slow down to compose my digital images more carefully. I learned a lot about the Nikonos camera system from the guy who ran Southern Nikonos. For example, I packed a Nikonos II and a Nikonos V out to Isla Guadalupe to pursue images of white sharks. The Nikonos V refused to work for me and I ended-up doing some dives with the Nikonos II. When I talked to Bob at Southern Nikonos about the issues with my Nikonos V, he asked me if I had put a new battery in it. When I confirmed that the battery was brand new, he told me to take it out, wipe my fingerprint oil off it and reinstall it. His solution worked perfectly.
When I use my underwater film cameras, I usually use Fuji Velvia 100 film pushed to ISO 400. I also use black & white film from time to time, but I have never bothered to print any of the B&W images.
During the height of the pandemic lockdown, someone sent me a Subal housing for a Nikon F100 camera. The housing needed some refurbishment. Tracking down parts took a while, but it's ready to go underwater.
Nowadays, I usually pack several digital underwater camera systems when I travel into Mexico. I am usually working with student underwater photographers and need to have spare DSLR systems available if anyone has issues with cameras or housings. There are limits to how much gear I can pack so the film gear has not made any recent trips.
The images were captured at Isla Guadalupe with a Nikonos II and 28mm lens. I did not use strobes so the images are too blue.
-Tinman


