I owned an RF645 for less than 1 year. While I loved the way the camera handled and the results that I obtained with it, I had several mechanical problems with it. The first time that I went for a hike with the camera, the battery door opened and the batteries fell out, leaving the camera dead in the water. As this was just a short, getting to know you hike, I didn't have spare batteries with me, and so I was essentially camera-less. Later, during a trip to Rocky Mountain National Park, the winder mechanism broke on the second day of the trip, leaving me with only my Holga to use. As I had run only about 75 rolls of film through the camera, I felt that this was a rather premature failure. Both repairs were made promptly and without charge by Bronica, but I lost all confidence in the camera and sold it shortly afterwards.