This Perkeo II with 80mm f3.5 Color Skopar is one of the very best of the 6x6 folders from the 1950's. I love how small it is and the lens is amazingly sharp. Normally this model will not do doubles but the camera repair fellow I bought it from had disabled the mechanism due to a broken part. He was apologetic, but I was delighted when I learned this and immediately bought it. :D