Posted 04 January 2009 - 10:04 AM
reefkeep, yes it is normal for there to be a little "play" in the port/extension ring connections. I agree that at first it is pretty unnerving, but as soon as you get in the water, the pressure of the water pushes them together. As long as you have properly maintained your O-ring, it will be fine. Always test it first without a camera when you first get your housing. As well, always dunk test your set up in the camera bucket or in the water. Look for a stream of bubbles that would indicate a leak!
Also, only the first extension ring or port will be actually locked by the S&S locking mechanism. Everything is marked with an "OPEN" and "LOCKED" mark. I've made it a habit to always look at those before I get in the water and every-now-and-then when I'm shooting under water. It is pretty obvious if your dome gets turned while attached to an extension ring...the shades are off center. Even if it does get turned, it's not the end of the world. You actually need to turn it pretty far and apply a lot of force to get those things apart on the surface.
Nikon D80, S&S DX-D80, YS-110 x 2, TTL III, ULCS, 60mm, Tok 10-17, Sig 17-70
Back-up: Sony DSC-P10, Inon D2000