Luther Gerlach makes photographs like they did back in 1851: using the wet-plate collodion process, a painstaking, multi-step technique that uses a chemical solution on glass plates to capture images with remarkable depth of detail. We followed him at the Getty Villa as he used his traveling darkroom and prepared for his artist-at-work demonstrations on 19th-century photography -- free, drop-in programs about historical art-making techniques. Information about artist-at-work demos at the J. Paul Getty Museum: www.getty.edu/museum/programs/courses/demos.html