18025-M24 External M24 Optical TTL-Converter for OLYMPUS/OM SYSTEM cameras for NAUTICAM, MARELUX, SEAFROGS underwater housings

External M24 Optical TTL-Converter for OLYMPUS/OM SYSTEM cameras for NAUTICAM, MARELUX, SEAFROGS (aluminium)  underwater housings. Installation in M24 threaded hole on the top of the housing. Please check compatibility with a specific housing. New style Olympus Hot Shoe only (5 pins+frame). TTL-Converter does not need a battery. Compatible underwater strobes: Inon S-220 / Z-330 / Z-240 / S-2000/ D-200, Sea&Sea YS-D1 / YS-D3 Mark II/ YS-D3 DUO, Retra Pro MAX (including HSS), Marelux APOLLO III V2.0 (including HSS), Marelux APOLLO-S (including HSS).