Comparing ALL of the Sony 70-200's! F/2.8 GM (First and Second Gen) and the F/4 - YouTube
Sony 70-200 f/4 Lens Review | Great Value E-Mount Zoom
Tony Northrup on Twitter: "Sony 70-200 f/4 (left) vs 70-200 f/2.8 G Master (right) at f/6.3, zoomed 1:1 on a7R II. GM sharper, focuses better. https://t.co/x2ev0PFQez" / Twitter
How compact is Tamron FE 70-180 f2.8 compared to Sony 70-200 f2.8 Lenses