I was recently gifted a D6 with 4x5 holders, 6x6, some other bizarre size, 6x4.5 etc, but I shoot 6x7! If someone has one lying about, it would be great to pickup. If you need a 6x4.5, I will gladly send it your way too (never have owned a camera with that format. Also, I need the mount for a 39mm threaded lens. Printing a 6x6 with a 135mm was interesting.... Thanks!