The Imaging Resource at PMA 2007:Sigma 200-500mm f/2.8 Lens

!±8± The Imaging Resource at PMA 2007:Sigma 200-500mm f/2.8 Lens

Dave Etchells talks to Tom Sobey of Sigma about the new APO 200 - 500mm f/2.8 EX DG telephoto lens. See more PMA 2007 coverage at imaging-resource.com

The Imaging Resource at PMA 2007:Sigma 200-500mm f/2.8 Lens

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Canon t1i / 500d Video, Lens: Tamron 28-75mm f2.8

!±8± Canon t1i / 500d Video, Lens: Tamron 28-75mm f2.8

Canon t1i / 500d Video, Lens: Tamron 28-75mm f2.8

Canon t1i / 500d Video, Lens: Tamron 28-75mm f2.8

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