Doh again,
All this has already been done......
Couldn't they just hire an ROV for the International comps?
I know they are expensive but the french are already wolrd leaders in underwater reasearch, they use these things all the time.
Still too expensive ?
What about a TOV ?
The T stands for "Towable", so like an ROV but no motors, just wait for it ..... waterproof Camera & Lights with a cable link to the surface. Seen adds for them at for about $10,000 AUS (~$5000 US).
An ROV may not be fast enough to follow someone down all the way, but if it was at the half way point, it would give good control of camera angles, and follow thge diver for some of the way.
Sorry all,
I'm in Daydream mode
Cheers,
Wal