Originally Posted by Hexavalent
The first statement in the quotation given by Umut contradicts these other statements above. In this Umut is right.
Concerning colour contrast filters:
They are not used in laser etc. line-exposure. And when one modifies the colours in the data files then of course one could make a greyscale file from the beginning. But then again the question arises, why make panchro material for laser exposure?
In classical optical printing though one can use colour contrast filters and here panchro paper makes sense.