Sony 20mm f/1.8 vs Sigma 20mm f/2: Best lens for landscape & astro photography
22% off photography education at http://northrup.photo coupon S22 Sigma 20mm f/2: $700 at http://sdp.io/sigma20 Sony 20mm f/1.8: $900 at http://sdp.io/sony20 Sigma just launched their 20mm f/2.0 super wide-angle lens for landscape and astrophotography (and even vlogging). How does it stack up? Tony Northrup tests it against the Sony G 20mm f/1.8 to see which you should buy. TABLE OF CONTENTS: 0:00 Introduction 1:17 Autofocus 2:12 Adjusting Aperture 2:39 Sharpness 4:08 Contrast & Flaring 4:45 Chromatic Aberration 5:01 Astrophotography 5:33 Sunburst 5:57 Summary

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The #1 Reason Your Landscape Photos Look Amateur

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