This auction is for a Used Vintage Leitz Leica 50mm f/1.5 Summarit-M Lens Made in Germany Circa:1956. This lens has become very sought after by collectors and users alike. This particular lens shows heavy signs of wear and being sold for parts or repair. Condition: signs of use with marks to front and rear lens elements, surface coating marks, inner haze/fog, inner dust, dented front filter ring, focusing hard to turn grinds, oil on aperture blades. Note: Service recommended! sold... as stated As-is! lens body appears to be in good condition otherwise! Great lens for the Leica aficionado/collector/repair technician!The optical construction of the lens consists of 7 elements in 5 groups. The lens barrel is metal in chrome finish, with metal aperture and focusing rings. The aperture ring rotates from f/1.5 to f/16 in one full f-stop clicks. The minimum focusing distance is 1m (3.5ft). The lens accepts rarely found these days A43 type or more commonly encountered E41 filters. Original lens hood is the barn-door style XIOOM, which you could replace with a modern after market rubber hood mounted on a step up ring. The lens weighs 300g (10.5oz).Leica Summarit 50mm f/1.5 was first introduced in 1949 in Leica Screw Mount. An M bayonet mount version of the lens was added in 1954 (like one listed) Summarit is effectively a coated version Leica's Xenon design (same optical formula), which was first released in 1936. Leica discontinued manufacturing Summarits in 1960. To the best of my knowledge, there are total of two versions of this lens that you might encounter these days - the most common version will have Wetzlar made in Germany engraved on the barrel. A less common, and also typically slightly more expensive version you might see once in a while will have Taylor-Hobson engravings instead of Wetzlar (also made in Germany). There is no difference between these two versions as there was no difference between similarly branded Xenons - the original Xenon/Summarit optical formula was invented by Taylor Hobson and later licensed then sold to Schneider, which in turn licensed it to Leica and even manufactured the actual lens on Leica's behalf. The Taylor-Hobson branding seems to indicate that the lens was exported to the UK/US where Taylor still held some rights on the design. Don't Miss Out On This DESIRABLE Leica Lens. If your a Leica user or Collector, This is a "must have" lens. Although this has been one of my favorite lenses, I decided to sale because I already have similar lenses! Please Understand this is a Used lens from the 50's and is not in NEW or Mint Condition! and Recommend a Complete Overhaul Service!Please Note: Item will ship Worldwide via Express Mail International with insurance/tracking $45.00 Opportunity to own one of the finest Leica lenses ever made!"SOLD AS PICTURED! PLEASE ASK ALL QUESTIONS BEFORE BIDDING ON THIS ITEM"