To be honest, I don't really remember how long the exposistion times were. I assume we used less than hour, more than minute and I wonder if I can found our old

To be honest, I don't really remember how long the exposistion times were. I assume we used less than hour, more than minute and I wonder if I can found our old lab-notes :) Photograms-idea sound really fun as well, and probably a bit easier than trying to get the exposition time correctly.