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There are several photographic processes that are UV-sensitive, most notably cyanotypy, so you can work inside with the curtains closed with hardly any fogging,
by taejo 7y ago
There are several photographic processes that are UV-sensitive, most notably cyanotypy, so you can work inside with the curtains closed with hardly any fogging, and then make photograms or contact prints outside. I've never tried taking photographs with it, but it could be fun too: exposure times in a pinhole camera are probably on the order of an hour, though.
- a-saleh 7y agoTo 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.
- taejo 7y agoTo be clear, my estimate for exposure time was for handmade cyanotype paper, not "real" photo paper.