I've been out of the UW shooting world for a LONG time. I've got an old IKE Substrobe 150 that I used a lifetime ago with my Nikonos III and 5 when that was state of the art.
I just picked up an Aquatica housing for my old 5D for a song, nice 8" port, macro, ext. rings etc. I can use my IKE manually which is fine, but I'd like to pick up another strobe for macro fill for a trip to Caymans next month. I was looking at an old Nikonos SB105 but I know that is old tech and really has no future and I hate wasting $, even though you can get one SUPER cheap these days. Inon, Sea and Sea, newer Ikelite gear is all foreign to me. Does anyone have suggestions for something I can use for slave strobe now and TTL in the future, or should I just grab an old strobe with slave capability and be happy saving a few $?