91380 UWTechnics style (M10) Optical Bulkhead for Nauticam housings, for usage with powerful LED

UWTechnics style (M10) Optical Bulkhead for Nauticam housings, for usage with powerful LED. These optical bulkheads are recommended for usage with internal UWTechnics optoelectronic TTL-Converters, as a replacement of the original Nauticam optical bulkheads. This bulkhead has a high transmission index, that improves accuracy of TTL and HSS flash control. Also, this bulkhead has a special internal recess for LED centering on the axis that is very important. Plastic adaper on the top of the bulkhead is compatible with the Sea&Sea standard 7mm plug of fiber optical cables. This optical bulkhead is also recommended for usage with UWTechnics 613-core fiber optical cables.