Now, I remember from David a little while back that C41 films are basically bw emulsion layers with different dyes which are brought out during processing. Now, when a C41 colour film is dev'd in bw chemicals, it produces bw negs with an orange base. Would a C41 bw film (eg.XP2 or TCN) produce bw negs from bw processing? In which case, isn't a C41 bw film basically normal bw film which has the emulsion in three sperate layers and an orange base, rather than just one thick layer? Rob CRIPN If something's not worth doing, it's worth forgetting about.