These photographs are taken using a 4″ x 5″ Camera Obscura on black and white positive direct photo paper. I made some experiments with the positive direct photo paper.

For working in the container this photo paper is very helpful, because it can be used in very large formats. The photo paper is extremely sensitive (6/9 ISO) which means the exposure times are much longer. Even longer than the times I already used with my normal Camera Obscura.