I did a dive shooting video with two sola video 1200 on a Nauticam NEX-5 system Friday night and really enjoyed the rig. The small size and near neutral buoyancy really helped with stability and setup on a small gorillapod, and the 18-55 lens covered a lot of the subjects we see at Blue Heron on a night dive. I couldn't believe how well the af tracked moving subjects, even hand held.
By accident I shot a demonstration of why red lights are useful..
The part that was of most interest to me was to watch the pupil. It did not dilate until the white light came on.