RayKo Photo Center, located in San Francisco, will be offering a two-day, intensive wet plate workshop on October 16th and 23rd. For full details, please click here. Photo courtesy RayKo Photo Center ByThe Halide Project On October 12, 2016 Workshops 0 Share: Permanent Link Share via Email Related Articles Spirit Photography at Penumbra this weekend! World Cyanotype Day is September 28th! Ambrotype workshop in Poland November 7th and 8th. “The Analog Film Lab” at Bushwick Community Darkroom on February 13th Black and white workshop at Penumbra this coming weekend! Penumbra Artist Series continues tonight!