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Sigma 50-500mm f/4-6.3 EX DG HSM APO RF Telephoto Zoom Lens for Pentax and Samsung SLR Cameras This high zoom ratio lens is optimized for digital SLR cameras and capable of covering a wide range of focal lengths from 50mm standard to 500mm ultra telephoto. The advanced optical design is optimized for digital SLR cameras. In addition, the new s ...

Sigma 120-400mm f/4.5-5.6 AF APO DG OS HSM Telephoto Zoom Lens for Nikon Digital SLR Cameras The Sigma 120-400mm Zoom Lens incorporates Sigma's original OS (Optical Stabilizer) function. It offers the use of shutter speeds approximately 4 stops slower. Three SLD (Special Low Dispersion) glass elements provide excellent correction for chromat ...

Sigma 120-300mm f/2.8 EX DG IF HSM APO Telephoto Zoom Lens for Canon SLR Cameras This lens transforms a large-aperture F2.8 300mm lens into a zoom lens that allows you to determine the picture composition you want without having to change your vantage point. It has two SLD (the special low dispersion) glass elements in front grou ...

Sigma 180mm f/3.5 EX DG IF HSM APO Macro Lens for Nikon SLR Cameras The 180mm F3.5 APO MACRO lens has a very narrow field of view, and can allow very narrow depth-of-field for selective focus and less distracting backgrounds. This lens is most desirable for photographers who are serious about producing high quality i ...

Sigma 50-500mm f/4-6.3 APO DG Telephoto Zoom Lens for Nikon SLR Cameras The Sigma 50-500mm f4-6.3 EX APO RF HSM SLR Camera Lens is a 10x Hyperzoom lens that covers all popular focal lengths from the 50mm "normal" to 500mm ultra-telephoto focal-length perspectives. Designed for a tripod mount, this lens remains lightweigh ...