Polaroid Type 55 film was a unique instant film that produced both a positive and a negative with every exposure. It was discontinued when Polaroid was turned into pyramid scheme and left to implode. Sad but true.
Polaroid Type 55 Links
A new version of Polaroid Type 55 called New55 recently completed a long and difficult crowdsourcing campaign. Actually, it may still be ongoing.
Electrocuted Polaroid 55 film.
Type 55 portraits by Joel Grimes.
Polaroid 55 Film: examples and film for sale. http://en.polaroid-passion.com/polaroid-4x5-inch-films.php?id=13
Could Polaroid’s Beloved Type 55 Film Return—Only Better? One Man Wants to Make It Happen http://www.vulture.com/2014/05/could-polaroids-beloved-type-55-film-retu...
Polaroid Type 55 Videos
Tom Baril :: Polaroid Type 55 Works https://www.youtube.com/watch?v=falFDWPuQaQ Project Documentation: Polaroid Type 55 at 15KV by Phillip Stearns Polaroid type 55 film that has been electrocuted. https://vimeo.com/72429894 The Mijonju Show - Polaroid Sheet Film and Large Format Camera. https://www.youtube.com/watch?v=3kMYKZHL1ho