{"product_id":"thypoch-eureka-50mm-f-2-collapsible-rangefinder-prime-lens","title":"Thypoch Eureka 50mm f\/2 Collapsible Rangefinder Prime Lens","description":"\u003cp\u003eThe Thypoch Eureka 50mm f\/2 is a collapsible manual-focus prime that revives the pocketable 50mm standard lens of the 1950s and rebuilds it with modern glass. Retract the barrel and the lens shrinks to just 27mm deep, turning a rangefinder body into something that genuinely slips into a coat pocket; twist it out to 41.2mm and you have a fast, normal-angle lens ready to shoot. With a 46-degree diagonal field of view, a knurled all-metal barrel and a compact profile that stays out of the viewfinder, the Eureka 50mm is a natural everyday-carry companion for street photography, documentary work and travel, where the smallest, quietest camera is usually the one that gets the picture.\u003c\/p\u003e\u003cp\u003eOptically the Eureka 50mm follows a classic double-Gauss formula of 6 elements in 4 groups, but Thypoch has modernized it from the inside out. An extra-low dispersion (ED) element suppresses chromatic aberration while a high refractive index (HRI) element corrects field curvature and spherical aberration, so the lens holds crisp detail on high-resolution digital sensors while still rendering the gentle, characterful tonality that vintage optics are loved for. The 12-blade diaphragm keeps the aperture opening rounded right through the f\/2 to f\/16 range, so out-of-focus highlights stay smooth and the transition from sharp to soft never turns clinical. Manual focus runs down to 0.9m from the sensor plane, and Thypoch states the lens covers not only full frame but the 44 x 33mm format of the Hasselblad CFV 100C, making it an unusually versatile compact fifty.\u003c\/p\u003e\u003cp\u003eThe Eureka 50mm is offered in two builds that share identical optics. The Lite version has an anodized silver aluminium exterior for durability and corrosion resistance and weighs only about 120g, the lightest way to keep a fast fifty on the camera all day. The Classic version is built with a silver chrome brass construction at roughly 218g, adding heft and a denser, jewel-like feel in the hand. Both are rated to operate from -30C to +70C, and both ship with a matching-material clamp-on A36 UV filter and clamp-on lens hood, so the retro kit is complete straight out of the box.\u003c\/p\u003e\u003ch3\u003eFeatures\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eCollapsible 1950s-inspired barrel: retracts to just 27mm, extends to 41.2mm for shooting\u003c\/li\u003e\n\u003cli\u003eFast f\/2 maximum aperture with a 12-blade diaphragm across the f\/2 to f\/16 range\u003c\/li\u003e\n\u003cli\u003eModernized double-Gauss optics: 6 elements in 4 groups including one ED and one HRI element\u003c\/li\u003e\n\u003cli\u003eManual-focus Leica M mount rangefinder prime focusing down to 0.9m from the sensor plane\u003c\/li\u003e\n\u003cli\u003e46-degree diagonal angle of view (39 degrees horizontal \/ 27 degrees vertical)\u003c\/li\u003e\n\u003cli\u003eCovers full frame, and per Thypoch the 44 x 33mm format of the Hasselblad CFV 100C\u003c\/li\u003e\n\u003cli\u003eTwo builds, identical optics: anodized silver aluminium (Lite, approx. 120g) or silver chrome brass (Classic, approx. 218g)\u003c\/li\u003e\n\u003cli\u003eClamp-on A36 UV filter and matching clamp-on lens hood included; no front filter thread\u003c\/li\u003e\n\u003cli\u003eRated for operation from -30C to +70C\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eFocal Length:\u003c\/strong\u003e 50mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaximum Aperture:\u003c\/strong\u003e f\/2\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAperture Range:\u003c\/strong\u003e f\/2 - f\/16\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLens Mount:\u003c\/strong\u003e Leica M\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFormat Coverage:\u003c\/strong\u003e Full frame; Thypoch states coverage of the 44 x 33mm format (Hasselblad CFV 100C)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOptical Design:\u003c\/strong\u003e 6 elements in 4 groups (double-Gauss), including 1 ED and 1 HRI element\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAperture Blades:\u003c\/strong\u003e 12\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFocus Type:\u003c\/strong\u003e Manual focus\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMinimum Focusing Distance:\u003c\/strong\u003e 0.9m (from sensor plane)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAngle of View:\u003c\/strong\u003e 46 degrees diagonal \/ 39 degrees horizontal \/ 27 degrees vertical\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFilter Size:\u003c\/strong\u003e A36 clamp-on (no front filter thread)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFront Diameter:\u003c\/strong\u003e 35.9mm (1.4 in)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLength:\u003c\/strong\u003e 27mm (1.1 in) collapsed \/ 41.2mm (1.6 in) extended\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e Approx. 120g (Lite \/ aluminium); approx. 218g (Classic \/ brass)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBarrel Material:\u003c\/strong\u003e Anodized silver aluminium alloy (Lite) or silver chrome brass (Classic)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOperating Temperature:\u003c\/strong\u003e -30C to +70C\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eWhat's Included\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eThypoch Eureka 50mm f\/2 Lens (Leica M Mount)\u003c\/li\u003e\n\u003cli\u003eClamp-on A36 UV \/ protection filter\u003c\/li\u003e\n\u003cli\u003eClamp-on Eureka lens hood\u003c\/li\u003e\n\u003cli\u003eFront lens cap\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Thypoch","offers":[{"title":"Aluminum","offer_id":46532925587653,"sku":"THY-TPEU50MAL","price":499.0,"currency_code":"USD","in_stock":true},{"title":"Brass","offer_id":46532925620421,"sku":"THY-TPEU50MBR","price":859.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0630\/3085\/3829\/files\/Thypoch-TPEu50MAL-EurekaLens-1.jpg?v=1783986513","url":"https:\/\/avlgear.com\/products\/thypoch-eureka-50mm-f-2-collapsible-rangefinder-prime-lens","provider":"AVLGEAR","version":"1.0","type":"link"}