I use my aptus 17 on my RZ because I had the RZ and lenses way before Leaf had Aptus. Sure it's a bit of a size mismatch, but the glass is good, the camera is solid, the viewfinder is large, bright and easy to focus, the back rotates so I don't need to flip it sideways to go vert, and I'm used to it. Also, try e-mailing JPEGs of your 6x7 film from the shoot...or tweaking the color temp for that matter... gone are the nights spent worrying whether or not i got the shot, or whether the lab is going to drop a roll on the floor and step on it (it has happened). Oh, yeah, and when I do decide to shoot film, the 6x7 format kicks ass. I still keep a back and a couple rolls in my kit just because...