I have a Rollei P66 as well. It's a 6x6 (and 35 mm) projector. But I use mostly my 6x7 camera. Is there such a thing called 6x7 projector? Are there 6x7 slide mount out there? Can a Rollei P66 project 6x7 slides? I got my P66 at a flea market for $15 with a dismantled zoom lens. It took me less than an hour to correctly assemble all the glass elements and restored the lens. It works flawlessly now. But I would really like to project 6x7 slides. Is there such a thing as 6x7 slides?