Sigma 17-50mm f2.8 EX OS Lens Unboxing & First Look

Sigma 17-50mm f2.8 EX OS Lens Unboxing & First Look Tube. Duration : 3.75 Mins.

Unboxing of a fast, standard zoom lens for crop sensor DSLRs; the Sigma 17-50mm f2.8. Some specs: - Weighs 565 grams - 7 diaphragm blades - 77mm filter thread - HSM motor - Sigma, Sony, Nikon, Pentax, and Canon mounts are available FOLLOW US @ twitter.com

Keywords: Sigma, 17-50mm, f2.8, EX, OS, Lens, Unboxing, DC, HSM, first, look, impressions, hood, aps-c, thetechnoexpert