{"product_id":"leica-sl-35mm-f2-0-apo-summicron-sl-asph","title":"Leica SL 35mm f2.0 APO-Summicron-SL Asph","description":"\u003ch2\u003eLeica SL 35mm f2.0 APO-Summicron-SL Asph\u003c\/h2\u003e\n\u003cp\u003eAs a moderate wide-angle prime, the APO-Summicron-SL 35 f\/2 ASPH. is almost a universal lens. Its fast autofocus, robust design and construction and exceptional imaging quality make it an outstanding lens for reportage and a convincing choice for other areas of photography such as architecture, landscapes, portraiture and studio work. It is perfectly matched to the cutting-edge SL-System and has been conceived for a long working life under professional shooting conditions.\u003cb\u003e\u003cbr\u003e\u003c\/b\u003e\u003cbr\u003eThe autofocus system shared by the Summicron-SL lenses is fast, precise, and nearly silent. Their outstanding AF performance figures are thanks to the autofocus drive unit they both utilize. These are limited only by the mass of the glass elements moved when focusing; the speed of moving from infinity to the closest focusing distance. In order to preserve the compact dimensions of the lenses, the integration of these components must be perfectly optimized within all design constraints. \u003cbr\u003e\u003cbr\u003eSpecialists from the areas of optical engineering, mechanical engineering and electronics worked together as an interdisciplinary team on the development of a unique lens concept based on double internal focusing. This system, comprising two especially light focusing lenses, allows the construction of particularly small and compact drive systems. While being able to work within tight space constraints, the drive motors used must maintain peak performance in all situations to be chosen for such a cutting-edge camera system.\u003c\/p\u003e\n\u003cp\u003eSeveral contrast measurements at various focusing positions must be made before the correct direction for focusing can be determined and followed by precise focusing. In this procedure, the focusing lens elements must be moved rapidly in accordance with the speed specifications of the contrast AF system. This requires a dynamic drive system without any room for error.\u003c\/p\u003e\n\u003cp\u003eIn the Summicron-SL lenses, the drive units installed are extremely powerful and robust stepping motors with Dual Syncro Drive™. Thanks to these, the entire focusing range can be traveled completely in fractions of a second. This means that the Summicron-SL lenses achieve values that are among the best in the full-frame system segment in terms of speed, precision, and operating noise. \u003cbr\u003e\u003cb\u003e\u003cbr\u003e\u003c\/b\u003eWith a maximum aperture of f\/2, the SL-Summicron lenses are significantly more compact than even faster lenses, but still allow photographers to work with similar depth of field. The reason for this is contrast: the area of highest contrast is incredibly sharp, while zones with lower contrast are unsharp or beautifully blurred.\u003cbr\u003e \u003cbr\u003eIn the case of SL-Summicron lenses, this difference in contrast is considerably higher than that of conventional lenses: sharply focused objects show much higher contrast than objects that are out of focus. This means that objects “pop” more distinctly out of the foreground or background and more effectively isolate the subject. This creates a three-dimensional visual effect with very impressive depth\u003cbr\u003e\u003cbr\u003eIn the construction of the Summicron-SL lenses, particular attention has been paid to the prevention of stray light and reflections. The optimization of the optical and mechanical design was carried out in elaborate simulations before the construction of the first prototype lenses. Unavoidable reflections are reduced to the lowest possible level by high-quality optical coatings of the lens surfaces.\u003cbr\u003e\u003cbr\u003eThe focusing and aperture setting functions of a SL-Summicron lens are based on a multitude of control systems and mathematical operations. The demands on the electronics are particularly high in the case of the double focusing system. \u003cbr\u003e \u003cbr\u003eThe two autonomous focusing units must be moved in perfect synchronization and positioning data have to be analyzed at a very high sampling rate and passed on to the camera. Here, the communication with the camera is so fast that there is no perceptible delay. These are the primary preconditions for fast and precise contrast AF.\u003cbr\u003e\u003cbr\u003eThe aperture is driven by a stepping motor. Here, a special micro-step control system ensures precise and fast movements with minimized vibration.reflections are reduced to the lowest possible level by high-quality optical coatings of the lens surfaces.\u003cbr\u003e\u003cbr\u003eSL-Summicron Lenses feature a totally new manual focusing ring construction concept. In this concept, a ring magnet with alternating north-south magnetization is embedded in the manual focusing ring. The magnetic field changes its polarity when the ring is turned. A sensor monitors the status of the magnetic field and sends the data to the main processor. The drive then shifts the lens to the corresponding focusing position on the basis of the angle of rotation and the rotational speed.\u003cbr\u003e\u003cbr\u003eThe construction of the MF-ring guarantees reliable sealing against dust and water spray, provides protection against impacts and other mechanical stresses, and prevents focusing inaccuracies as a consequence of temperature fluctuations. Even after years of use, the MF-ring of a SL-Summicron lens impresses with a smooth action without play and homogeneous focusing\u003c\/p\u003e\n\u003cp\u003eThe consistently compact dimensions, low weight, and the excellent grip and feel of the SL-Summicron lenses are particularly impressive when shooting. Thanks to the almost identical design of the Summicron-SL lenses, feeling for the MF ring is unnecessary after switching lenses and the center of gravity remains largely the same. This means that the camera always lies perfectly in the hand and makes working from a tripod much easier. \u003cbr\u003e\u003cb\u003e\u003cspan style=\"font-size: large;\"\u003e\u003cbr\u003e\u003c\/span\u003e\u003c\/b\u003e\u003cb\u003e\u003cspan style=\"font-size: large;\"\u003eSpecifications: \u003c\/span\u003e\u003c\/b\u003e\u003cbr\u003e\u003cbr\u003e\u003cb\u003eOrder number \u003c\/b\u003e11 184\u003cbr\u003e\u003cbr\u003e\u003cb\u003eField angle \u003c\/b\u003e(diagonal, horizontal, vertical) 63,4° \/ 54,4° \/ 37,9°\u003cbr\u003e\u003cbr\u003e\u003cb\u003e\u003cspan style=\"font-size: large;\"\u003eOptical design\u003c\/span\u003e\u003c\/b\u003e\u003cbr\u003e\u003cbr\u003e\u003cb\u003eNumber of lenses\/groups\u003c\/b\u003e 13\/11\u003cbr\u003e\u003cbr\u003e\u003cb\u003eNumber of aspherical lenses\u003c\/b\u003e 3\u003cbr\u003e\u003cbr\u003e\u003cb\u003eEntrance pupil position\u003c\/b\u003e 66.4 mm at ∞\u003cbr\u003e\u003cbr\u003e\u003cb\u003e\u003cspan style=\"font-size: large;\"\u003eDistance setting\u003c\/span\u003e\u003c\/b\u003e\u003cbr\u003e\u003cbr\u003e\u003cb\u003eWorking range \u003c\/b\u003e∞ to 0.27 m\u003cbr\u003e\u003cbr\u003e\u003cb\u003eSmallest object field\u003c\/b\u003e 120 x 180 mm\u003cbr\u003e\u003cbr\u003e\u003cb\u003eLargest reproduction \u003c\/b\u003eratio 1:5\u003cbr\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003ch5 data-start=\"130\" data-end=\"160\"\u003eWhat Our Experts Think\u003c\/h5\u003e\n\u003cul data-start=\"161\" data-end=\"560\"\u003e\n\u003cli data-start=\"161\" data-end=\"239\"\u003e\n\u003cp data-start=\"163\" data-end=\"239\"\u003eAPO optics deliver exceptional sharpness and minimal chromatic aberration.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"240\" data-end=\"323\"\u003e\n\u003cp data-start=\"242\" data-end=\"323\"\u003eFast f2.0 aperture ensures excellent low-light performance and beautiful bokeh.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"324\" data-end=\"409\"\u003e\n\u003cp data-start=\"326\" data-end=\"409\"\u003eWide 35mm focal length ideal for landscapes, street, and documentary photography.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"410\" data-end=\"490\"\u003e\n\u003cp data-start=\"412\" data-end=\"490\"\u003ePrecision-engineered for Leica SL cameras with robust, durable construction.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"491\" data-end=\"560\"\u003e\n\u003cp data-start=\"493\" data-end=\"560\"\u003eCompact and lightweight design for comfortable handheld shooting.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch5 data-start=\"562\" data-end=\"573\"\u003eQ\u0026amp;A\u003c\/h5\u003e\n\u003cul data-start=\"574\" data-end=\"980\"\u003e\n\u003cli data-start=\"574\" data-end=\"657\"\u003e\n\u003cp data-start=\"576\" data-end=\"657\"\u003e\u003cstrong data-start=\"576\" data-end=\"582\"\u003eQ:\u003c\/strong\u003e Which cameras is it compatible with?\u003cbr data-start=\"619\" data-end=\"622\"\u003e\u003cstrong data-start=\"624\" data-end=\"630\"\u003eA:\u003c\/strong\u003e Leica SL system cameras.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"658\" data-end=\"789\"\u003e\n\u003cp data-start=\"660\" data-end=\"789\"\u003e\u003cstrong data-start=\"660\" data-end=\"666\"\u003eQ:\u003c\/strong\u003e Can it perform in low-light conditions?\u003cbr data-start=\"706\" data-end=\"709\"\u003e\u003cstrong data-start=\"711\" data-end=\"717\"\u003eA:\u003c\/strong\u003e Yes, f2.0 aperture provides bright, high-quality images in dim light.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"790\" data-end=\"870\"\u003e\n\u003cp data-start=\"792\" data-end=\"870\"\u003e\u003cstrong data-start=\"792\" data-end=\"798\"\u003eQ:\u003c\/strong\u003e Is it weather-sealed?\u003cbr data-start=\"820\" data-end=\"823\"\u003e\u003cstrong data-start=\"825\" data-end=\"831\"\u003eA:\u003c\/strong\u003e Yes, resistant to dust and moisture.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"871\" data-end=\"980\"\u003e\n\u003cp data-start=\"873\" data-end=\"980\"\u003e\u003cstrong data-start=\"873\" data-end=\"879\"\u003eQ:\u003c\/strong\u003e Does it produce smooth background blur?\u003cbr data-start=\"919\" data-end=\"922\"\u003e\u003cstrong data-start=\"924\" data-end=\"930\"\u003eA:\u003c\/strong\u003e Absolutely, wide aperture creates creamy bokeh.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch5 data-start=\"982\" data-end=\"1006\"\u003eMaintenance Tips\u003c\/h5\u003e\n\u003cul data-start=\"1007\" data-end=\"1300\"\u003e\n\u003cli data-start=\"1007\" data-end=\"1060\"\u003e\n\u003cp data-start=\"1009\" data-end=\"1060\"\u003eKeep front and rear lens caps on when not in use.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1061\" data-end=\"1124\"\u003e\n\u003cp data-start=\"1063\" data-end=\"1124\"\u003eClean optics with a microfiber cloth and lens-safe cleaner.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1125\" data-end=\"1171\"\u003e\n\u003cp data-start=\"1127\" data-end=\"1171\"\u003eAvoid touching lens elements with fingers.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1172\" data-end=\"1222\"\u003e\n\u003cp data-start=\"1174\" data-end=\"1222\"\u003eStore in a dry, padded case to prevent damage.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1223\" data-end=\"1300\"\u003e\n\u003cp data-start=\"1225\" data-end=\"1300\"\u003eInspect lens mount and focus mechanism periodically for smooth operation.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Leica","offers":[{"title":"Default Title","offer_id":45364310442044,"sku":"72252","price":4170.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0666\/6151\/5324\/files\/72252-05_13.jpg?v=1778504137","url":"https:\/\/e-powergo.com\/products\/leica-sl-35mm-f2-0-apo-summicron-sl-asph","provider":"Set Up Your Ultimate Retreat","version":"1.0","type":"link"}