www.adorama.comAdorama TV presents the Sigma Art Lenses. Join Diane Wallace as she explores the features of the Sigma 24-105mm F4 Art Lens and the Sigma 50mm F1.4 Art Lens.  Related Products:Sigma 50mm f/1.4 DG HSM ART Lens for Sony Alpha & Maxxum DSLR Cameras - USA Warrantyhttp://www.adorama.com/SG5014RSO.htmlSigma 24-105mm f/4.0 DG OS HSM ART Lens for Sigma DSLR Cameras - USA Warrantyhttp://www.adorama.com/SG24105HSG.htmlCanon EOS-5D Mark III Digital SLR Camera Body, 22.3 Megapixel - USA Warrantyhttp://www.adorama.com/ICA5DM3.htmlThank you to the Oyster Bay Lions Club fundraiser for the Guide Dog Foundation based in Smithtown, Long Island.Oyster Bay Lions Club:http://oysterbayny.lionwap.org/Guide Dog Foundationhttp://www.guidedog.org/Check out Adorama's latest contest here for great prizes!:http://www.adorama.com/alc/category/A...If you have questions, share them with us at: [email protected]