I know this topic pops up every now and then. But the situation is changing continously.
I am looking for a black and white polaroid material for the RB67 pola back. I found the Fuji 100c for colour, the Fuji 100b is no longer available.
Can I use the expensive "Impossible" material in the RB67 backs? Any other ideas?
Fuji FP3000B (their last b&w instant film) has been discontinued recently so prices have risen but it is still available new and in-date. I've shot 6-7 year out-of-date FP3000B and it was indistinguishable from new, I might have been lucky with good storage, I don't know.
Anything else will be a kludge of putting the film in the back piece by piece and transferring it in the dark to an Instax or Polaroid camera. Do-able but not so much fun or efficient.
Impossible film is for the integral film cameras, like Polaroid's Spectra, SX70, all of their 600 models.