INDUSTAR-50 50mm F/3.5 LENS FOR M39 FED ZORKI LEICA (LTM) mount

Industar-50 is a normal angle (standard) coated LTM lens for Leica, FED, Zorki, and other rangefinder cameras. Presented lens is based at ideas of Zeiss Tessar. It can be mounted on any LTM RF camera, include modern Bessa cameras, and it can be used with a lot of digital Micro 4/3 cameras with the adapter. In the main, most all Soviet lenses are exceptionally good and this one is no exception! ITEM'S CONDITION: EXCELLENT++++ The glass is very clean, without scratches, separations or fungus, but very minor cleaning marks can be found. Cosmetically the lens is in fine condition, looks like accurately used before, just examine item's photos, please. Aperture blades open and close smoothly, focusing is very smooth too. All functions are available. NOTE: Soviet lens manufacturers wrote even about NEW lenses: "The components of modern high quality lenses are produced from special grades of glass. The smelting process involved causes inevitable formation of gasses which get trapped in the glass to form bubbles. They are always noticed with complex photographic lenses. The bubbles do not affect the lens performance or the quality of the image. Soviet state standards also allows the presence of next minor defects: scratches with the width less than 0.02mm at each surface of each optical element with total length no more than double element's diameter; dots with diameter less than 0.3mm no more than 5 dots; several minor pieces of dust and no more 2 napkin fibers with the length no more 3mm. Therefore, the factory does not accept claims about bubbles and minor defects of clearance found in lenses or exchange such lenses." TECHNICAL FEATURES * Focus: 50 mm (52.4mm exactly). * Angle of view: 45 degrees. * Coated optics without Russian red symbol "n" (it sounds like P=prosvetlenije, this symbol was removed since beginning of 1960s, when all Russian optics became coated). * Relative aperture: 1:3.5. * Aperture: from 3.5 up to 16 (without clicks). * Mounting: screw mount M39 LTM (Leica Thread Mount). The lens can be used with latest Leica M cameras with simple adapter. * The lens is well-applicable for digital cameras with micro 4/3 system and other with working distance 28.8mm and less, with the use of adapters: All Sony NEX, Olympus, Panasonic: Lumix DMC-G1, DMC-GH1, DMC-GF1, DMC-G2, DMC-G10, Epson, Samsung and other. * Resolution (in pairs of lines per 1mm): not less than 38 in the center and 32 lines on the edge of frame. * Filter mount: external (push-up) 36mm and internal 33x0.5 mm screw mount. * Compact and light.