I have one of these enlargers. I have only used for 6x17. It's a great outfit. The VARIABLE CONTRAST cold light works great . I have a Metrolux II timer, really makes things easy. These are great for split grade printing . Finding one this complete is rare. This is the Type 2 model, Calumet bought Zone VI, not sure who redesigned from the type 1, but these are really nice. And it gives you a excuse to buy a 6x17 camera
. I just got a brand new 5x7 carrier from Tracy Storer at Mammoth Camera. He's got the elusive 6x17 carriers that he is making.