Further Experiments in Alternative Photography

For a while now, I've been doing solargraphs with drink can cameras - like this one:

These are long-exposure images on photographic paper, using a pinhole camera. This is a short one - only a couple of days. They can go on for years. Rather than developing them, the latent image is scanned directly, as the exposure would result in a black sheet if developed.

Anyways, I thought I would try a similar technique using a medium format camera. Exposure times are a lot shorter, but still require a tripod. Here is a 15 minute exposure on a partly cloudy day, processed in Snapseed:

I can see a lot potential in this.