G'day Cliff. Thanks for the info, glad to know this experiment will work and I will get the materials together soon. The Roscolux gel filters on the other hand, I'm not sure where to get them in Australia. Well I know there's some assorted Roscolux filters going on Ebay over here but out of all the listed filter colours only #76 is in one of the packs. So for the time being I'll just experiment with cellophane as I've been very successful getting a colour picture from a 70s vidicon camera with taking 3 stills using red, green and blue cellophane the pic can be seen on Labguysworld VTR site on this page
http://www.labguysworld.com/ColrQkCm.htm . Anyhow looking forward to getting this experiment together
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