Fuji 250mm f/6.3 CM W lens which has an image circle diameter of 320mm when the lens is stopped down to f/22. This takes a 67mm size filter thread.
This is a newer, multi-coated version of the Fujinon-W series lenses. In the older, single-coated version, the 250mm was a 6.7, with a 398mm circle at f/22, while still taking a 67mm filter.
What is the specification of the 210mm that you have mentioned?
The 210mm f/5.6 has a circle of illumination of 352mm at f/22 and uses a 58mm filter. Closed down to f/45 or f/64, I have a hard time using up all of the movement, though I do occasionally. Going with the 250mm would give you all that much more to play with. The 250's are much coveted and tend to bring a bit of a premium.
Both of the above lenses are in a #1 shutter.
I have a number of friends with the 250mm f/6.7 lens and all love it. Either of these lenses would be very viable options in the focal length range you mention.
Ed