RC1 Olympus TTL Receiver for AOI LED Flash Trigger and DS Strobes Fiber Optic Here's a sample of what

Here's a sample of what they're capable of underwater:

Spare o-ring: 0134

Over 7 hours burn time with PCa (6AA batteries)

The Extension attaches to an existing Base with two included screws for stability and rotation-free use

This retainer is included with housings for DSLR and mirrorless featuring the DL port system

RC1 Olympus TTL Receiver for AOI LED Flash Trigger and DS Strobes Fiber Optic Here's a sample of whatEnjoy true Olympus RC TTL strobe exposure via fiber optic connection with your compatible Ikelite DS strobe. This Receiver is specifically calibrated for use with AOI Flash Triggers in RC Mode in the following underwater housings**: AOI UH EPL10R Underwater Housing for Olympus E PL9 10 AOI UH OM1 Underwater Housing for OM System OM 1 AOI UH EM1III Underwater Housing for Olympus OM D E M1 III AOI UH EM10 IV Underwater Housing for Olympus E M10 IV This