Tool for Zoom Retainer Ring for DL Port System Zoom Gears The Optical Receiver automatically configures

The Optical Receiver automatically configures itself for compatibility with both pre-flash and non pre-flash camera modes

Problem Solved: Ecko Fiber TTL Results with OM System TG-7

Non-coiled 3 ft (91 cm) long extension cord with Ikelite-style bulkhead on one end and Ikelite-style strobe plug on the other end

The most universal and affordable zoom gearing system in the industry

Gamma flashlight not included

Tool for Zoom Retainer Ring for DL Port System Zoom Gears The Optical Receiver automatically configuresThis lightweight spanner tool is used to attach the Zoom Retainer Ring to a DSLR housing featuring the DL Port System.