Sigma 28-105 f2.8 Review: BEST Pro Sony Zoom!

Buy the Sigma 28-105mm f/2.8 for $1,499: http://SDP.io/S28105 Buy the Sony 24-70mm f/2.8 GM II for $2,298: http://SDP.io/S2470GM2 Photography Education: http://northrup.photo Tony Northrup reviews the new Sigma 28-105mm f/2.8 professional zoom lens for Sony E-mount and Panasonic/Leica L-mount. He tests it for handling, design, sharpness, weight, size, contrast in backlit situations, bokeh, and more! 0:00 Introduction 1:56 Design 3:33 Sharpness 5:35 Sweet Spot 5:57 Bokeh 6:11 Contrast, Backlighting & Chromatic Aberration 6:48 Macro/Closeup/Maximum Magnification 7:04 Autofocus & Frames per Second 7:44 Summary