I have a Nikon D200 in a Sea & Sea housing with two YS90 DX strobes. The strobes are attached by a double sync cord which attaches to the camera hot shoe inside the housing.
I have my Camera flash settings on manual. With the pop up flash down. Strobes are set to on and the slave is off.
My strobes are firing intermitently. The sync cord is new and the wiring looks good.
Should I use a different camera setting? There are so many. Should I raise the pop up flash? Or lower the power of the flash?
I'm on an island with no other photographers to ask.
Please help. I'm at my wits end!