The Lens Price Database, Lens$db, has prices and physical specifications for over 400 lenses, including: all Canon EF prime lenses and EF Extenders; all Canon EF L-series zoom lenses, plus a few others; a large selection of “alternative” manual focus lenses from Carl Zeiss, Leica, Nikon, Olympus, Pentax, Voigtlander, and other brands; a variety of lenses from Sigma, Tamron and Tokina; a selection of Medium Format Mamiya 645 lenses that are more-or-less compatible with EOS cameras, and with the Mirex Tilt-Shift adapter; and, a small selection of Fujifilm XF and similar rangefinder-style lenses. The prices are mostly for used equipment in excellent to mint condition, based on eBay sales and list prices at many camera stores.
interesting that some of the excellent values are higher than the new values. I think that has to do with the limited data available in some of the lenses.
Thank you, Jim.