{"product_id":"leitz-wetzlar-mirror-reflex-housing-proon-visoflex-system","title":"Leitz Wetzlar Mirror Reflex Housing | PROON (Visoflex System)","description":"\u003ch3 data-path-to-node=\"0\"\u003eLeitz Wetzlar Mirror Reflex Housing | PROON (Visoflex System)\u003c\/h3\u003e\n\u003cp data-path-to-node=\"1\"\u003e\u003cb data-path-to-node=\"1\" data-index-in-node=\"0\"\u003eGood Condition | Precision Mirror Box | The Pre-War Bridge to Macro \u0026amp; Telephoto Photography\u003c\/b\u003e\u003c\/p\u003e\n\u003cp data-path-to-node=\"2\"\u003eThe \u003cb data-path-to-node=\"2\" data-index-in-node=\"4\"\u003eLeitz PROON\u003c\/b\u003e (the telegraphic code for the early Visoflex\/PLOOT system) is a masterfully engineered mirror reflex housing, designed to transform a standard Leica rangefinder into a highly capable single-lens reflex (SLR) system. Originally introduced as part of the \u003cb data-path-to-node=\"2\" data-index-in-node=\"269\"\u003ePLOOT\u003c\/b\u003e assembly, it is celebrated for its ability to allow through-the-lens (TTL) viewing, which is essential for accurate focusing with telephoto lenses (like the 135mm or 200mm Telyt) and for high-magnification macro work. This all-metal industrial unit features a precision flip-mirror mechanism and a dual cable release system, providing the mechanical soul and optical brilliance required to overcome the parallax limitations of the traditional rangefinder.\u003c\/p\u003e\n\u003cp data-path-to-node=\"3\"\u003e\u003cb data-path-to-node=\"3\" data-index-in-node=\"0\"\u003eKey Features\u003c\/b\u003e\u003c\/p\u003e\n\u003cul data-path-to-node=\"4\"\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"4,0,0\"\u003ePrecision-aligned \u003cb data-path-to-node=\"4,0,0\" data-index-in-node=\"18\"\u003einternal flip-mirror\u003c\/b\u003e for true through-the-lens viewing\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"4,1,0\"\u003eSeamlessly converts Leica screw-mount (LTM) bodies into a reflex-viewing system\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"4,2,0\"\u003eDual-cable release compatibility to synchronize the mirror lift with the camera shutter\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"4,3,0\"\u003eCompatible with legendary \u003cb data-path-to-node=\"4,3,0\" data-index-in-node=\"26\"\u003eLeitz Wetzlar\u003c\/b\u003e magnifiers (like the 5x POOIM or 30x)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"4,4,0\"\u003eRobust all-metal industrial chassis with a classic black enamel finish\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"4,5,0\"\u003eEssential for precision focusing with long-focal-length Telyt lenses\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"4,6,0\"\u003eModular design, serving as the foundational predecessor to the iconic Visoflex I, II, and III\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-path-to-node=\"5\"\u003e\u003cb data-path-to-node=\"5\" data-index-in-node=\"0\"\u003eIntroductory Paragraph\u003c\/b\u003e The \u003cb data-path-to-node=\"5\" data-index-in-node=\"27\"\u003eLeitz PROON\u003c\/b\u003e mirror box is the definitive choice for the enthusiast who values the absolute peak of pre-war and early post-war Leica versatility. This specific unit is a standout because it represents a time when \u003cb data-path-to-node=\"5\" data-index-in-node=\"239\"\u003eLeitz\u003c\/b\u003e was pioneering the transition from the rangefinder to the reflex world, offering a solution that was decades ahead of its competitors. The \u003cb data-path-to-node=\"5\" data-index-in-node=\"384\"\u003ePROON\u003c\/b\u003e system is famous for its mechanical reliability and its ability to turn a simple IIIc or IIIf into a surgical macro tool. Because it was built to the same exacting standards as the Leica cameras themselves, it serves as an incredibly stable platform for high-magnification work where even a fraction of a millimeter in focus makes the difference. Whether you are a scientist documenting specimens or a collector of the rarest Wetzlar accessories, this \u003cb data-path-to-node=\"5\" data-index-in-node=\"842\"\u003ePROON\u003c\/b\u003e provides the optical brilliance and historical heritage that defined the expansion of the Leica system.\u003c\/p\u003e\n\u003cp data-path-to-node=\"6\"\u003e\u003cb data-path-to-node=\"6\" data-index-in-node=\"0\"\u003eCondition Report\u003c\/b\u003e Good condition. The \u003cb data-path-to-node=\"6\" data-index-in-node=\"37\"\u003eLeitz\u003c\/b\u003e mirror box shows normal signs of light use and minor cosmetic surface wear consistent with its age. The internal reflex mirror is clear with minimal dust and provides a bright image. The mirror-flip mechanism is snappy and correctly synchronized. The external finish is well-preserved, and the mounting threads (camera side and lens side) are in excellent condition.\u003c\/p\u003e\n\u003cp data-path-to-node=\"7\"\u003e\u003cb data-path-to-node=\"7\" data-index-in-node=\"0\"\u003eSpecialist Note\u003c\/b\u003e \"The PROON is a fascinating piece of Leica history. What I love about this model is how it changes the personality of your Leica rangefinder; suddenly, you aren't guessing with an external viewfinder—you're looking through the glass. It’s a rugged, honest piece of German engineering that feels indestructible. For anyone who wants to use a 135mm or 200mm Telyt lens properly, or for those who want to see what 'Leitz macro' really looks like, the PROON mirror box is the essential 'missing link' in your collection.\"\u003c\/p\u003e\n\u003cp data-path-to-node=\"8\"\u003e\u003cb data-path-to-node=\"8\" data-index-in-node=\"0\"\u003eWhat's Included\u003c\/b\u003e\u003c\/p\u003e\n\u003cul data-path-to-node=\"9\"\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"9,0,0\"\u003e\u003cb data-path-to-node=\"9,0,0\" data-index-in-node=\"0\"\u003eLeitz Wetzlar PROON\u003c\/b\u003e Mirror Reflex Housing\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-path-to-node=\"10\"\u003e\u003cb data-path-to-node=\"10\" data-index-in-node=\"0\"\u003eTechnical Specifications\u003c\/b\u003e\u003c\/p\u003e\n\u003cul data-path-to-node=\"11\"\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"11,0,0\"\u003eBrand: \u003cb data-path-to-node=\"11,0,0\" data-index-in-node=\"7\"\u003eLeitz (Wetzlar)\u003c\/b\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"11,1,0\"\u003eModel: \u003cb data-path-to-node=\"11,1,0\" data-index-in-node=\"7\"\u003ePROON\u003c\/b\u003e (Visoflex\/PLOOT series)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"11,2,0\"\u003eAccessory Type: Mirror Reflex Housing (Mirror Box)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"11,3,0\"\u003eMount: Leica Thread Mount (LTM \/ M39)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"11,4,0\"\u003eCategory: 5. Accessories \u0026amp; Support ▸ Specialty \/ Support\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"11,5,0\"\u003eBattery Type: None (Fully Mechanical)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Leica","offers":[{"title":"Default Title","offer_id":55618119532884,"sku":"B146W5442BG","price":150.0,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0780\/2493\/3716\/files\/IMG_6677_d9fbfb40-617c-4dbb-a71e-ac1b710b1214.jpg?v=1777025752","url":"https:\/\/www.htf-store.com\/fr\/products\/leitz-wetzlar-mirror-reflex-housing-proon-visoflex-system","provider":"Hard to Find Camera Store","version":"1.0","type":"link"}