Best way to connect two Seacam flashes to Nauticam with one Bulkhead? in Lights, Strobes, and Lighting Technique Posted August 4, 2017 Not really directly related to your questions but maybe of interest for some thinking of connecting Seacam strobes to Nauticam Housings via Bulkhead:I installed two Seacam 150 strobes to my Nauticam Housing this year after bringing them back from the Dive Show in Germany. I got them with the Seacam Bulkheads as the Nauticam ones were not available at the booths of the various dealers at that moment. So i decided to go with the Seacam ones and use the M16-14 step down adapter that Pavel mentioned above. The bad surprise: The Seacam M14 Bulkheads don't fit through the Nauticam Step Down Adapter as the thread is too long. I had the adapter milled out and filed off the front part of the bulkhead to make it work.