| Disco dive lights. I remember reading (a few years ago) an article in a dive mag about adapted or special dive lights.
I can't remember the exact methods involved but it probably involved special bulbs or special lens filters or both.
The aim was to show up colours on marine life that would not normally be visible - similar effect as ultra violet light has on certain materials (or is it colours?).
Does anyone know anything about this?
__________________ If a man says something in the woods and there are no women there, is he still wrong? |