This was an interesting solargraph experiment in the Pinsta

I took a 3 minutes exposure on Ilford Grade 2 Fibre Paper (about 2/3 the metered exposure to keep some tone in the sky), developed in Champion Suprol (1+9 3 mins), then stopped the development with an acid stop and rinsed... But didn't fix the image. I put it back on the tripod in the exact same place and left it for 3 hours to catch the sun trail in the sky.

Needs a bit of tweaking but almost exactly what I hoped for from the experiment that's been in my head for years! The idea was to get a well exposed and defined foreground with a solargraph trail as well. Mission accomplished!

It's fun to get sharp shadows in a Solargraph.

Of course... the first exposure could be anything - it's not limited to being the same scene!