Film
that is unexposed to light, sealed and factory
fresh is considered unexposed. This is what
you load the magazine in the camera with before
shooting. If the seal on a film can is broken
by anyone other than yourself, it may or may
not be already exposed (it will be - that's
Gomer's law). If you're going to shoot anything
important, do yourself a favor and buy new
film. Short ends (unused returns) wouldn't
be acceptable for anything critical like a
professional job.
