I'd like to give panoramic IR a shot. I have access to a Cambo 6x12 back, and a Horseman 6x12 back. Instructions for the Cambo back say that it's not suitable for IR film, and I was told the same would be true of the Horseman back, even though it winds out way less leader in loading than the Cambo. So, are these statements true in regards to the IR film we have now? I'm sitting on a couple rolls of Ilford and Rollei, and wondering about buying some Efke 820 and 820 AURA. I also have a roll of old Konica 750nm from 1995. What do I need to know? Efke reports problems in plastic cameras, but is the Cambo back made of the same plastic as, say, a Holga? If I load in complete darkness, will that negate any fogging? Does the Efke AURA really need to be loaded in darkness anyway? (MACO says no, some reviews say yes.) Is the leader the same length as other 120 films? I've found or been given a lot of information from different sources, but nothing that conclusively answers the question: Can I put today's IR film in a Cambo or Horseman 6x12 back? I have a limited budget and don't want to waste a roll of film to find out that the answer is 'no.' Does anybody have any experience with IR film in these backs? Any advice would be appreciated.