<p>Hello,<br> I'm looking for a system that has a removable 6x6 back where the film travels left to right (or right to left). Most SLRs (Bronica, Hasselblad) with removable backs have the film travel top to bottom. <br> Systems that fit my requirement are RZ 67 and Mamiya 23 Universal, but the 6x6 back is hard to find for both.<br> Thanks,<br> Shayok</p>