Canon Marco Photo 20mm F/3.5 FD or FL bellows lens. Serial #19992. Made in Japan. This is an unusual non focussing bellows lens. Will fit Canon bellows FL or FD only. Aperture range is f/3.5 - f/22. This lens is great for all kinds of close up marco  photography. Lens is in Mint- or 9.5 of 10 cosmetic condition. Nice barrel with good lettering and numbers. No dings or dents. Perfect coating. All original. Perfect working aperture. Blades are clean and smooth. A sharp lens that has good contrast with a super sharp optics for your Canon FD bellows system. Lens comes with original Canon Macro Photo Bellows adapter and bubble case. Also included with this rare 20mm Canon macro lens is a Canon FD Vari-Extension Tube M30-55. This variable extension tube allows for manual focusing with the 20mm f/3.5 Macro Photo lens. Sells with NO RESERVE at a price of $395. I have more Canon cameras, lenses, accessories, 35mm Rangefinder cameras and lenses,  Medium and Large Format cameras, on my other Auctions, web page and eBay Store.