Complete tutorial for building a device that allows you to make sun exposures with the same amount of UV radiation even at different times and atmospheric conditions. Useful for cyanotype, gum bichromat, salted paper and other historical photographic printing processes.
Click here to watch the full blog entry content.
Don't hesitate to comment about this blog entry.
Click here to watch the full blog entry content.
Don't hesitate to comment about this blog entry.
