The Office of Agence France-Presse (AFP) in Washington, DC, has switched from Canon to Nikon. As a result, they just put this ad in Craigs List:http://washingtondc.craigslist.org/doc/ele/776037797.html I was there today to buy what were advertised as Nikon UV filters but turned out to be skylight filters. Look at the bottom of the ad for the code for the condition of the equipment. I spoke with Ben Keller there, who was very honest in describing the condition of the filters. The phone is 202-414-0603.