|Kodak Instamatic 277X Camera|
|Perutz Daylight Type Colour Reversal Film|
As colour reversal, the Perutz film was originally for slides. The film was 'process paid' and the box contains an envelope to return the film to Perutz for processing, no longer a possibility. The film also requires different chemistry to the E6 reversal process still in use today, as the Perutz film was made for Agfa's C18 process (Perutz, a photographic company founded in the 19th century, was bought out by Agfa in 1960s). Incidentally, there's an advert for Perutz slide film on YouTube : http://www.youtube.com/watch?v=sEYv_pbmcv4
Rather than attempt to develop the film as colour reversal film, it was easier to cross-process it as a black and white negative film. Inside the 126 plastic cartridge is a roll of paper-backed film on a plastic core, rather like any older rollfilm format. The film is the same width as 35mm, which means that it can be put onto a 35mm spool for developing. I used stand development with Rodinal diluted 1:100, for 1 hour. Once developed, the film has a heavy yellow-green cast, but, by giving the film as much exposure as possible, this has resulted in usable negatives.