One of our photo teachers yesterday gave out some free film out of his old stock. i managed to snag a couple quickloads and 3 boxes of the double side readyloads. Im estatic! I know they don't make either anymore but at least i can have fun with what i got. SO i have a old polaroid 500 back and maybe a 545 tucked away somewhere. i know that you can use them in it but there maybe some focusing issues? Also i think you can use quickloads in kodaks back but not the other way around. anybody have experience with this? Thanks in advance!