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Sigma 17-70mm F2.8-4 DC Macro OS HSM C vs Tamron SP 17-50mm F/2.8 XR Di II VC: What is the difference?
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Sigma 17-50 Sigma 17-50mm F/2.8 Ex Dc Os Hsm Lens For Nikon D3200 D3300 D3400 D5200 D5300 D5500 D5600 D7000 D7100 D7200 D500 - Camera Lenses - AliExpress
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Amazon.com : Sigma 17-50mm f/2.8 EX DC OS HSM FLD Large Aperture Standard Zoom Lens for Canon Digital DSLR Camera - International Version (No Warranty) : Electronics
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Sigma 17-50mm f/2.8 EX DC OS HSM (FLD) Autofocus APS-C Lens for Select Nikon F-Mount Cameras {77} at KEH Camera
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