The documentary entitled 'Janez Puhar's Lost Formula' introduces the Slovenian inventor of glass-plate photography from the point of view of a foreign observer, that of Scotsman Robin Crichton, who wonders how and why we honour him, since he is virtually unknown in the Western world. Robin decides to single-handedly look into these Slovenian beliefs. Puhar claims that for the light-sensitive matter he used mercury, sulfur, iodine and possibly varnish, which... see more