I have been thinking of adding street photography to the large format work that I do. I have both a prism and waist level finder for my Bronica. I have never done any street photography. Am I correct in thinking that the waist level finder is less intrusive and intimidating then the having a camera at eye level? The other thing that I have thought is that the waist level finder will pretty much limit me to a horizontal format on the 645. Any thoughts on this? Thanks for any insights and experience that you can share.