Leica 560mm F/5.6 APO Telyt R 11841 R Mount Lens

With its new-style APO-TELYT-R MODULAR Lenses, Leica offers nature and sports photographers in particular a highly interesting alternative to conventional telephoto lenses with long focal lengths. In a flash, the two Lens Heads and the three FOCUS MODULES can be transformed into six different APO lenses of the very highest optical quality. The two APO-TELYT-R Lens Heads can be combined freely with the - FOCUS MODULE 2.8/280/400 (= factor 1 x) - FOCUS MODULE 4/400/580 (= factor 1.4 x) and - FOCUS MODULE 5.6/580/800 (= factor 2 x). The result is always a complete APO-TELYT-R Lens. The various combinations provide lens speeds ranging from 2.8 to 5.6 and focal lengths ranging from 280 mm to 800 mm. Use is made of special types of glass for highly refractive elements or elements with extraordinary partial dispersion in both the lens head and the focusing module. The corrected spectral range ensures an apochromatic correction of colour aberrations even at the corresponding full aperture (according to the Leica definition of an apochromatic system!). The achievable close-focus range with simultaneous high contrast and resolution is unique. The lens head and FOCUS MODULE are connected by a permanently seating, high-precision bayonet mount, making for quick-change convenience. This results in substantial price savings: the reduction in weight and volume make these modules easier to transport. The user has a system offering a wide variety of possibilities at his fingertips: plus, all combinations can use the LEICA-R APO-EXTENDER, without restriction.