Twice the length, twice the fun! Another one of those discontinued Agfa films (it's sad, isn't it?). With patience, and a little luck, it can be found cheap in discount bins or on ebay, and it's well worth the effort!
The greatest thing about this film? Its lenght! At twice the length of 120 film, 220 is twice the fun – 24 square frames instead of 12! Just remember there’s no backing paper, so you need to cover up the red frame counter window. Or – if you’re loading up your Holga – use the opaque back from the 35mm adapter kit (which, in my case, turned out to not be so opaque after all). With no backing paper and hence no frame numbers, you may want a little help in that department. Either use Squarefrog’s advance-guide, or just wing it!
Since there’s no backing paper, 220 film is, hands down, the easiest way of doing redscale film. But why not take it a step further? Try shooting the entire roll the normal way, then when you’re done, shift it back in the feeding position, putting the empty spool back in the take up position, but this time pull the lead from the back of the roll – be careful not to flip the roll upside down, or you’ll end up with one exposure right side up, the other upside down. When you’re done, you’ll have a half & half roll, regular exposures mixed with redscaled ones.
Give it a try, and have fun while you’re at it!