Hi Phil and graveleye,
Thanks for the positive feedback.
I used the following video light - in most cases in connection with the enclosed diffusor for a more warm light:
http://www.digibroadcast.com/products/1/S-2010.htmThe camera was an ordinary Sony Camcorder (DVD-505). To keep the equipment dry and save was actually one of the most difficult tasks in the making of the film. For that purpose I used a waterproof case - similiar to the Pelicase stuff, but thanks to Ebay much cheaper.
We actually did the film in 2007, but the English version just became ready for the European Caving Meeting 2008 in Vercors/France in August. Unfortunately the film was shown there at 9am and so there weren't many cavers present to see the film (probably already on a big trip - or more likely, still a bit drunk from the festival activities the night before).
Yes, of course I know the Falkensteiner Höhle, it's just in the next valley, but unfortunately I don't know Michael Kipp. Nevertheless I could ask some other club members whether they know him.
Regards from Germany,
Juergen