http://www.cambridgeworld.com/
Are they a legitimate seller or is their stuff grey market? They have amazing prices on Trinovids and older Zeisses, but also list Bausch & Lomb so maybe they jsut haven't updated their prices in like 5 years.
If the prices are lower than, say, Eagle Optics, Anacortes or Christopher Ltd., by more than a few dollars, then the merchandise is likely grey-market. Authorized dealers can't go below a certain level without losing their USA franchise, not to mention the margin may become too thin. Some of those New York outfits sell both grey-market and authorized stuff (e.g. B&H), but you have to look at the fine print to determine what you're looking at.