I recently bought my 1st DSLR rig from a local dive shop. It is an Ikelite 20D housing and DS125 strobe for my existing camera. They gave me a both a domed and flat port with the rig. After getting everything home (3 1/2 hr drive) it became obvious that the flat port is for a different brand of housing. I'm wondering if anyone can identify it. It is all black anodized aluminum, larger in diameter than an Ikelite and has two very small screw holes thread on the end facing the inside of the housing. See the attached pictures. BTW - anyone have use for the port? Trades? Awesome site. Thanks guys.
