How do you get those great tones on your cyanotypes? I have tried using tannic acid and tea. I have let my prints dry and rest for a couple of days but all I get is a general stain to the paper and not the image. Too, I have tried everything that I have read on APUG. Any papers that are especially good with cyanotype toning? Or some to avoid?
Alan, I find my best results with Platine. I'm bleaching with sodium carbonate (commonly available here as washing soda) before toning. A little bleaching tends towards the split tone effect of the third pic, more bleaching tends towards the warm tones of the first two. You can also bleach with dilute ammonia, but it is hard on some papers and not that all that much fun as a darkroom chemical.