To get a blue image, cyanotype comes first to mind. In my collection, I have an interesting piece: blue pictures on a thin transparent « paper ». I also have a large collection of old and anonymous photographs, Le Chronoscaphe, which led me to learn more about history of photography and its processes. You can see more of my work on my website and follow me on Instagram. My name is Aline Héau, I’m a French photographer and I’ve been doing cyanotype on glass since 2016. Cyanotype is destroyed in an alkaline environment and needs to be in contact with the air to regenerate (which needs to be taken to consideration when you mount your finished cyanotype on glass). Hydrogen peroxyde just speeds up oxydation, you don’t really need it, just wait a few hours. There are no « Solution A and B »: these are chemicals with names, properties and hazards. Using a digital negative with a fine tuning of the curve, will give you incredible prints if you take the time to do it properly. Then you can let your creativity go wild. But there’s more to this process than heavy brush strokes and Atkins-esque photogrammes (which are fine). It’s fun, pretty, and you can do it with kids. Hope it helps…Ī friendly reminder: classical cyanotype on paper is one of the easiest photographic processes. It’s been a learning curve I know it’s exciting to try things out and experiment, which is why I wrote this post: to share knowledge and avoid getting lost in the weeds.

And as I’ve had a lot of requests for guidance, I decided to translate the slides into English. The purpose is not to give a step-by-step guide for this process but share some info, tips and my personal journey with cyanotype on glass. These are the slides I showed, and extra content. On November 10th 2019, I gave a talk at the Salon de la Photo in Paris about cyanotype on glass.

Quick clear collodion recipe