Originally Posted by Loose Gravel
not sure, but the rumor is that PN55 film is panatomic-x. i've heard that some folks remove it from the sleeve + process it in film developer instead of the polaroid chemicals ... so it could have an archival wash &C.
a few years back i asked polaroid abour the longevity/archival quality of their other film, and they were not able to give me any info. tracy storer uses one of those 20x24 polariod cameras, maybe he knows ?