"I think it's just an old myth that it can't be done." This statement is neither true or myth. It can be done with a large distortion in spectral sensitivity unless you use Panalure paper, which is a panchromatic b&w paper, and probaly only such paper readily available. Multigrade paper might be somewhat better than graded varieties but still lots of distortion in overall spectral sensitivity.(posted 8072 days ago)