I do much field photography but I use a 6x7 and sometimes encounter other photog raphers. I was recently photographing wildflowers and came across a nationally k nown 4x5 pro who was extremely rude to me. No, it wasn't David or Marc Meunch. ( They are known for their politeness). This guy seemed to think he owned the plac e even though we both knew it was Indian reservation. Not exactly professional b ehavior from this well published LF shooter.