FPArnold - I figured that my cheap "sunprint" paper was probably sub-par.

I did learn some interesting things from it though. For one, you have to wait a while for the true color of the image to emerge. After 2 days for drying the prints achieve their "full blue" look. Prior to that they look much paler. I think this has to do with the paper I am using and the amount of water it holds. It seems that once all the water is driven out of the paper, you get a much bolder blue.

I need to contact Bostick and Sullivan and get some cyanotype materials from them. Now, I have seen two formulas out there. An "classic" forumla known as "A" and another formula called "B".

So what is the difference?