Fiber Optic Sync Cords for underwater photo strobes connect the housing to the strobe using IR light. They do not require a watertight conection.
Trip Report - Flower Garden Banks National Marine Sanctuary - July 2014 - By David Todd
Recently I had a chance to dive on some of the healthiest coral reefs in the world off the coast of Galveston, Texas in the Gulf of Mexico.
The Gulf is not known for it’s pristine waters. With two-thirds of the US draining into it, it tends to be muddy, filled with oil and gas platforms and wouldn’t be most people’s first choice when searching for a dive destination. Those folks are missing out....