Review: Tamron 17-50mm f2.8 VC (Nikon Mount) - The Phoblographer
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KYIV, UKRAINE - JUNE 19, 2015: Nikon D5300 Camera With Sigma 17-50mm F2.8 Lens On White Background Stock Photo, Picture and Royalty Free Image. Image 53148674.
Lensrentals.com - Buy a Sigma 17-50mm F2.8 EX DC HSM OS for Nikon DX
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 - AliExpress
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File:Nikon D50 with Tamron 17-50mm f2.8.jpg - Wikipedia