I was doing some contact printing yesterday for the first time. Quite enjoyable though I need work, bit rusty in the darkroom. I got some rough results that I'm happy with though, I'll probably refine a bit more and print 6x9 contacts masked in the middle of a sheet of 8x10. I had some B&W VC paper sitting around though which I'd used earlier to test and it was slowly beginning to print out over the day, so I stuck a colour negative on it and pointed an IKEA light directly at it from a distance of a few inches. Wasn't expecting much, just curiousity. I fixed it later on when I was doing the rest of the contact prints and it came up a bit. Here's a straight scan: You can maybe already see what's confounded and confusticated me, it's clearer in the print, and clearer still if I level up the scan a little bit... Where do the colours come from ??!? It's not just scanning artifact, the print has a clear green tone to her trousers, and blue to her jacket. It's a contact printed crossprocessed Fuji RTP negative, so could the dyes have bled onto the paper somehow or something ?