<p>I received my first Polaroid camera (a 600 type) about a year ago since then i have used film from impossible project. I recently purchased a Polaroid sx-70 on eBay and I was wondering if i could test it using an old film cartridge (that still has charge) from my 600 before buying a full cartridge of sx-70 film. Any input or answers would be fantastic, thank you!</p>