[Olli]

Why not just get black foamcore. It's lite and flat black. You can get it in 4 ft x 8 ft sheets at an art supply. Better yet get a soft black cloth background from Denny Mfg. It just stufs in a bag and sucks up all of the light.

http://www.dennymfg.com/cgi-bin/shop...rchResult.html