I'm looking for a medium format SLR system to accompany my Bronica RF645 and Mamiya 6 rangefinders and mostly to shoot color transparencies. I'm looking for a rectangular format camera that is reasonable lightweight (6x4.5) and has great lenses. I have played around recently with a Mamiya 645 Pro. The lenses were great. I wasn't too crazy about its "plasticy' feel though, and also didn't like the fact that you had to use a cheesy little adapter just to use a standard cable release. I also prefer leaf shutter lenses as opposed to focal plane shutters in cameras. Leaf shutters are so nice and quiet and seem to me to fail less than focal plane shutters. So this made me look to the Bronica ETRS. I used to own a Bronica SQ-A and I know that that camera had a more solid feel to it. So I assume the ETRS is the same. The ETRS also has a cable release socket and a great selection of lenses, though more expensive than the Mamiya's lenses. I was just looking for opinions from folks who have used one or both cameras and what their opinions are. Thanks!