Toning a cyanotype with tannic acid 

Beautiful Process. But The end product look more brownish than black, I think it has to do with the bleaching first, usually what i do is I go straight to the tannic acid.

Thank you for this. The wheels are turning. 😁

Just great! Love it! All the best from Norway

Excellent! Thanks!

Great job! thank you and best regards.

Love this video, it has helped me Gordon and Melanie, my dear friends.

Better sound would make a better demo

What kind of tannin are you using here? Galls? Beautiful work by the way.

Wow!!

Does this improve the lifespan of the print?

It's not real bleach?

I want to make it Black not brown