I used an RB for large group photo's when I worked in event and group pics-I always enjoyed using that camera especially over the Bronica ETRS's which were nice but the RB was that much more. The RB I used had a prism view finder and a 40 that would give a little bend in the corners but it was the only way to shoot a large group in tight(ish) quarters. That you switch from the digi back to a 120/220 film back is pretty cool.