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Amazon.com : Sigma 70-200mm f/2.8 APO EX DG HSM OS FLD Large Aperture Telephoto Zoom Lens for Canon Digital DSLR Camera : Camera Lenses : Electronics
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Sigma 70-200mm f/2.8 APO DG EX HSM OS Autofocus Lens for Nikon {77} with Tripod Collar/Foot at KEH Camera
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Amazon.com : Sigma 70-200mm f/2.8 APO EX DG HSM OS FLD Large Aperture Telephoto Zoom Lens for Canon Digital DSLR Camera : Camera Lenses : Electronics
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