Nice rapports guys!! I am useing the same gear right now and are testing it out. I have upgrade from D300s to the D800. In the same time almost change every lens...
Right now I am using...
Sea and Sea MDX Housing
Dual S&S YS110a strobes
TTL Converter III
Optical port and diffrent macroports.
Lenses is 60mm, Nikon 105VR, Sigma 15mm, Nikon TC 2.0x III Converter. ( I have sold my Kenko converters, both 1.4x and 2.0x)
So far I have just tested the equipment in pool and alot on land of course. My opinion is splited. When it works, results i magic! I have compared directly with D300s, and the different i clear! Specially on land, with Nikon 70-200/2.8 the pictures is eyecatching! But on the downside I find it more diffcult to put focus perfect.
I am trying out the D800 quite hard. Right now in snow and really cold conditons. I let camera even to be in the snow just to check the weather sealing. The more I use the Camera, the more I lovet it. Specially the DR and resolution. I will go to Norway in end of Januari and really try the camera out in cold water.
Its a really minus that S&S didnt include leaksensor in this housing!
Here is an picture from D800 + Nikon 70-200.