Hi - In my continuing attempt to clean out the coffers while adding to the coffers, I offer a 210mm Apo El Nikkor for sale. This is the older version of the lens that properly covers 4x5. Included is the lens, original box and certification paper, and two screw on covers. The glass itself is clean and free from marks, the iris is clean and turns easily, and the lens is diffraction limited. It is the only enlarging lens I've ever used that defines grain perfectly under the magnifier. Really - it doesn't get better than this (even with a printing Nikkor - an example of which may be listed shortly...). I would like $4500.00 for the lens, but will accept offers. Cheers - E.