INDUSTAR-50-2 50mm f3.5 lens M42 Zenit Pentax Praktica camera Tessar copy 1978

KMZ plant, Krasnogorsk, 1978 STANDARD FOCUS INDUSTAR-50-2 50mm f3.5 LENS for M42 ZENIT PENTAX PRAKTICA CAMERAS ... or for other SLR with 42mm lens mount... One of sharpest lens between Soviet Tessar's copies!!! ABOUT ITEM'S ORIGIN (You can SKIP it!) In the main, most all Soviet Industar lenses are exceptionally good and this one is no exception! It can be used with a lot of digital SLR & MFT cameras with simple and inexpensive adapters. ITEM'S CONDITION: EXCELLENT The glass is clean and should produce nice images, it still without scratches, separations or fungus, but very minor cleaning marks sometimes can be found. Cosmetically the lens is in fine condition, just examine item's photos, please. Aperture blades open and close enough smoothly, focusing is smooth too. All functions are available. TECHNICAL FEATURES * Focus: 50 mm. * Angle of view: 46 degrees. * Relative aperture: 1:3.5 * Aperture: from 3.5 up to 16 (without clicks). The aperture scale rotates during focusing, and for best aperture control You'll see two similar epertire scales on it. * Lens mount M42 (known also as Pentax Screw Mount), same with huge quantity of lenses for old Practica, Pentax, Yashica, Cosina and other cameras with optical registration 45.5mm. * Mounting for different modern SLR, MFT & dSLR cameras will not bring any trouble with well-spread M42 adapters. Nikon F mount users will not have infinity focus with simple adapters and M42 optics, close-up shots only will available. * Filter mount: groove 35.5x0.5mm. * Focusing: from 0.65m to "infinity". * Weight (without case and lens caps) 75 gr. * Diameter 50 mm. * Length (focused at "infinity") 28 mm. * Made at KMZ plant at Krasnogorsk town near the Moscow city (it has the special symbol). * The lens was made in 1978 for export, signed on English: Made in USSR INDUSTAR-50-2 THE ITEM COMES WITH Lens INDUSTAR-50-2 #7819120 Front lens cap (with KMZ plant logo) ABOUT PHOTOS The item pictured is the actual item for sale. You can see exactly what you are buying. SHIPPING We are more than happy to welcome any international buyers! We ship the item FREE WORLDWIDE (exclusions are exists, you can ask Me before purchase to be sure)! Item will be shipped via Russian Post service during 3 days upon receipt of your payment. Shipping time is mostly about 4-6 weeks to receive the item as Registered Air Mail package with the tracking number (or by registered and insured Air Mail parcel for heavy items), but sometimes (but not very often) it can be up to two month.