I have used the analyser with both ILFORD AND kodak c41 films, with the ilford film it is a doddle, with the Kodak film it can be done, but the results are not so good, but I find that printing the Kodak c41 film onto black and white paper, even without the analyser, doesn't really work, it is designed for colour paper only where the ilford film is mean't for b/w paper.
Richard