Rodenstock 90mm Grandagon-N private labeled for Sinar (some suggest at stricter tolerances) as the Sinaron W, multicoated, Copal 1 shutter, 236mm image circle, 105°, very nice cosmetic condition, FLAWLESS glass, perfect working condition, ships with two caps and retaining ring. Note, the image coverage on the Grandagon series is so even, you will rarely (if ever), need center filters.