I've been looking in to setting up a permanent studio for chromakey work and investing in a suitable painted background.
Is it worthwhile buying the Rosco Chromakey, Digicomp or Ultimatte paint?
I don't mind investing the extra (i.e. over and above a tin of green matt from my local store) if I will get a better result from CS3.
Any thoughts much appreciated.
For chroma keying the quality of lighting and the quality of the background are essential to get good results. So the best thing to do is to get it right the first time. You said it is a permanent studio, so get the best paint you can afford.