So I'm being hauled around to yet another clothing store the other day by my girlfriend. Being bored out of my skull I wandered around the store looking well...bored. Then I came across something odd. This store had a sort of knick-nack section and they had one of those cyanotype kits. The kind that people make "sunprints" from. So I picked one up. No need for a darkroom here, and the sun is never in short supply. I have an old Kodak 5x7 printing frame that I figure I can use. Here is the question though... Can I use ANY B/W negative here or for good results should I look at something with more/less contrast than one would use for normal printing? This little kit I got of course has NO instructions on how to print using a frame and a 4x5 negative. Imagine that! I'd like to ideally get some decent results from this stuff. It seems to have a lot of potential as a medium, although it SEEMS (and I could be wrong here) that it would lend itself to contrasty prints. Do I need to compensate for that in the negative?