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Sigma has refined optical technology, in order to fully realize the possibilities of single lens reflex cameras and to respond exactly to the demands of the photographer, helping him to bring his vision to reality. Sigma’s huge choice of lenses enables photo enthusiasts to maximize their creativity. Each and every Sigma lens offers optimum optical performance and smooth handling characteristics through a combination of experience and advanced technology. Sigma’s design and precision engineering helps photographers to maximize their true creativity by fulfilling the full potential of their cameras.     14 mm F2.8 EX ASPHERICAL (HSM) Ultra wide angle lens with large aperture 15mm F2.8 EX DG DIAGONAL FISHEYE Digitally optimized diagonal fisheye auto-focus lens 20mm F1.8 EX DG ASPHERICAL RF Wide angle lens with large aperture and superior peripheral brightness 24mm F1.8 EX DG ASPHERICAL MACRO The large aperture wide-angle lens for close up photography. 28mm F1.8 EX DG ASPHERICAL MACRO The large aperture wide-angle lens for digital and 35mm film SLR cameras.   24-60mm F2.8 EX DG The large-aperture, wide-angle zoom lens that is an excellent compact companion for digital SLR camera 24-70mm F2.8 EX DG MACRO Large aperture standard zoom lens provides superior performance both for Digital SLR Cameras and 35mm Film SLR Cameras. 24-135mm F2.8-4.5 A large aperture zoom lens from 24mm super-wide -angle to 135mm telephoto zoom lens. 28-70mm F2.8 EX DG Compact, lightweight, yet Robust, Large Aperture Zoom Lens 28-70mm F2.8-4 DG Compact, large aperture zoom lens is ideal for 35mm digital SLR cameras 28-200mm F3.5-5.6 DG MACRO A compact, high-zoom ratio lens, ideal for full-frame digital SLR cameras. 28-300mm F3.5-6.3 DG MACRO Compact High Performance Zoom Lens with a 10.7:1 High Zoom Ratio and optimized for Digital SLR cameras   APO 50-500mm F4-6.3 EX DG /HSM High Magnification Zoom Lens with a 10x zoom ratio. Optimized for digital SLR cameras. APO 70-200mm F2.8 EX DG MACRO HSM Large aperture zoom lens designed specially for digital SLR cameras with close-up capability. APO 70-300mm F4-5.6 DG MACRO Telephoto zoom lenses with tele-macro function, optimized for digital cameras 70-300mm F4-5.6 DG MACRO Telephoto zoom lens with excellent cost performance and optimized for use with digital SLR cameras. APO 80-400mm F4.5-5.6 EX DG OS Optical Stabilizer (OS) function, developed with Sigma's own technology, compensated for shaking of the camera. APO 100-300mm F4 EX DG /HSM Fast aperture telephoto zoom lens that provides excellent optical performance for Digital SLR cameras and film SLR cameras APO 120-300mm F2.8 EX DG HSM Large aperture of F2.8 at 300mm focal length and optimized for used with digital SLR cameras. APO 135-400mm F4.5-5.6 DG Compact ultra-telephoto zoom lens, optimized for digital SLR cameras. APO 170-500mm F5-6.3 DG High-performance 500mm ultra-telephoto. APO 300-800mm F5.6 EX IF HSM From 300mm telephoto to 800mm ultra-telephoto this new lens provides a constant fast maximum aperture and is optimized for digital SLR cameras. APO 300mm F2.8 EX DG /HSM Fast maximum aperture F2.8 telephoto lens optimized for digital SLR cameras. APO 500mm F4.5 EX DG /HSM Fast maximum aperture telephoto lens optimized for digital SLR cameras. APO 800mm F5.6 EX DG /HSM 800mm ultra telephoto lens optimized for digital SLR camera   10-20mm F4-5.6 EX DC /HSM Super wide-angle zoom lens designed exclusively for digital SLR cameras. 17-70mm F2.8-4.5 DC MACRO Large aperture standard zoom lens designed Specially For Digital SLR Cameras. Macro lens level close up ability 18-50mm F2.8 EX DC This large aperture standard zoom lens extends shooting opportunities. Designed Specially For Digital SLR Cameras. 18-50mm F3.5-5.6 DC Specially designed to suit the characteristics of digital SLR cameras. 18-125mm F3.5-5.6 DC This compact zoom lens covers a wider zoom range 18-200mm F3.5-6.3 DC Compact, Lightweight Superzoom lens, with high zoom ratio of 1:11.1 55-200mm F4-5.6 DC Compact and lightweight, high-performance telephoto zoom lens. 30mm F1.4 DC Large Maximum Aperture of F1.4, specially designed for Digital SLR Cameras. For these special digital single-lens reflex camera lenses, the image circle has been designed to match the image elements which correspond to the APS-C size. The original technology gathered during the development of the SD series of digital singe-lens reflex cameras has been used to realize optical abilities most suitable for digital images. This high-performance lens series combines the technologies and know-how for lens power arrangement, coating design, etc., accumulated during long years of developing interchangeable lenses for single-lens reflex cameras, with up-to-date digital image technology. Reduction of the image circle diameter makes it possible to reduce the size and the weight of the lens, and contributes widely to the handling characteristics at the time of taking pictures. * Use is not possible for digital single-lens reflex cameras with image elements larger than the APS-C equivalent size, 35 mm single-lens reflex cameras, and APS film single-lens reflex cameras. In case of such use, vignetting occurs on the screen and in the resulting images.   MACRO 50mmF2.8 EX DG Optimized optical design for digital SLR cameras. MACRO 105mmF2.8 EX DG New medium telephoto macro lens with excellent optical performance. It employs a new design concept for digital SLR camera. APO MACRO 150mmF2.8 EX DG HSM Super compact and lightweight, large aperture telephoto lens with life-size macro capability. APO MACRO 180mm F3.5 EX IF HSM It combines sharp close-up performance and excellent mechanics.