New version of VDB Carlo Krier 6 years ago Less exposure, 30” istead of 1′, citric acid in 1rst bath. Share this: RelatedUttermost perversion12th Mar 2019In "alternative photography"Back to photography: Grevenmacher - Huelen Zant12th Aug 2018In "alternative photography"References alternative photography (cyanotype)12th Dec 2017In "4 workschop"
