Bowling Green, Kentucky photographer Daniel Houghton recently posted about something we don’t recommend. He was able to use PocketWizard Plus II units to fire his Profoto heads underwater. Yes. Underwater.
Back in October he photographed open-water marathoner Mallory Meade. After shooting Meade from a boat as she swam in a lake, they moved the photo shoot to an Olympic-sized pool. Houghton got underwater and was able to fire his Profoto heads with his PocketWizards submerged.
PocketWizard radios utilize a high frequency radio signal transmitted on at a very low power, which work great when the radios are transmitting through air. Unfortunately, the requirements for a reliable system underwater is the exact opposite of this. You’d need a very high powered, low-frequency transmitter to get any sort of reliable range (think military submarine or whales). In the limited testing we’ve attempted with our radios underwater, your triggering distance would most likely be measured in inches or centimeters instead of meters or feet. PocketWizard does not recommend submerging your equipment in water of any kind.