Much to my dismay, Fuji Film has stopped manufacturing FP-100C which was the last pack film to be made for Polaroid Land cameras and my Polaroid back for my Mamiya RZ-67
I still have some left but it is getting ridiculously priced. The last I paid was 39.95 for a package of 10 exposures.
If you are interested, I can still shoot on Instant film, either Fuji or Polaroid.
It will be on a paid basis only though.