Current Polaroid film is different from the Polaroid film of the past. Much of the chemistry and components used by Polaroid are no longer available, so we had to reinvent the film using entirely new materials and a new formula. Needless to say, it wasn’t easy.
One downside of this is that current Polaroid film sheets are slightly thicker than the old Polaroid film sheets. As a result, it’s not possible to fit 10 photos in the film cartridge, and we obviously can’t change the size of the film cartridge – because then it wouldn’t fit in the camera. The only solution was to put 8 film sheets in each pack, instead of 10.
This means that the frame counter on your Polaroid vintage camera will always be off by 2. Whenever you insert a new pack of film into your camera, the frame counter will reset to 10 automatically, but this actually means you have 8 photos left. When the frame counter shows 2, it means you’ve used all the photos in your pack.
Learn more about the differences between here.