This is the multicoated version (Mfg Catalog # 66070252, list price $158.00; B&H Catalog # BWUVMC77, B&H price: $77), not the single-coated version (Mfg Catalog # 65070156, B&H Catalog # BWUV77) that B&H sells for $46.25. The rim says MRC for Multi-Resistant Coating. I bought the filter after ordering a 300/4M lens. The lens turned out to be a 300/4 SMC, which I returned. The filter is in the box, unused. Will ship within the U.S. only, for $50 plus insured U.S. mail. - This message is from the Pentax-Discuss Mail List. To unsubscribe, go to http://www.pdml.net and follow the directions. Don't forget to visit the Pentax Users' Gallery at http://pug.komkon.org .