The Sealux housing for the Sony PMW-EX1 Camera is a full manual camera with electronic controls for a few basic operations.  You can see spec sheets for the housing here:  http://sealux.de/s1e.htm

Why did I choose the Sealux housing for the EX-1 over a Gates housing?

The first reason was the extortionate price of the standard optics for the gates housings, the prices for their macro dioptre was almost 2x the price of the century optics dioptre that it is based upon. There is also the standard wide port, which apparently cannot have a sony/century wide angle adaptor placed behind it inside the housing… on the Sealux I could fit the Century Dioptre and the Sony W/A adaptor without too much effort, and significantly less cash. Also the option of having electronic controls as well as full manual was very appealing… So I settled on the Sealux.  It is not to say the Gates is bad, i'm sure it is wonderful.

Sealux HQ in Germany were very helpful when I called with questions about the housing/camera combo and that convinced me they were the correct people to call when it came around to buying this set-up.