I'm looking to switch from my Horseman monorail to a field camera. I have only two lenses, a Rodenstock 210 and a Nikon 120SW, the Nikon has a very large rear element (total diameter is 3 1/8 inches)....is there a concern with the Nikon lens as to what field camera will be able to accomodate it? Guess I'm trying to get an idea of what field cameras not to even consider to kinda speed the search up.