the problem with polaroid/impossible integral film is that the image is inverted whereas the instax image would be normal. I have a polaroid cb70 back for my mamiya universal. there are quite some universal and polaroid 600SE owners out there who would want an instax back. it is a constant subject of discussions on polaroid passion. until now nobody was able to hack the instax circuit. no need for complicated work on camera conversions, a back would do. you could ask the future clients to send in a frame and a functioning instax wide.
Originally Posted by Alpenhause