Developing Glass Plate Negatives From a 120-Year-Old Time Capsule

We've known Mathieu Stern to share some of the coolest and craziest photography stuff out there, but we have to admit we weren't quite prepared with his latest find. In a video included in his blog post, the Paris-based photographer and filmmaker documented the Cyanotype developing process he did to create some beautiful prints of the 120-year-old glass plate negatives he found in his old family home. If you're interested in alternative developing printmaking processes or are simply in the mood ...