[BradS]

The 210mm Apo-Sironar (W) is a very nice match to 5x12, with some room for movement - I've used that combination. The 210mm Super-Symmar HM should also work well, though it's bigger and heavier than the Rodenstock W. Both lenses are rated as covering 80 degrees, with image circles of roughly 350mm at f/22.

ah, yes. but those are not the garden variety 210mm Plasmats. I'm thinking here of the pedestrian Sironar-N, Sironar-S, APO Symmar, Symmar-S, Nikkor-W, etc...