Rodenstock 210mm Sironar-N, apochromatic, Multicoated, 72° angle of view, 301mm image circle, Copal 1 shutter, very nice cosmetic condition, pinpoint chink on front element close to center (see photo), thirty day moneyback trial period, perfect working condition ships with two caps and retaining ring. To be clear, this is identical to the Apo-Sironar-N optically and mechanically, the only difference is the branding on the barrel.