Sigma 24-70 f/2.8 DG DN II Art vs Sony 24-70 f/2.8 GM II: Half price, equal quality!

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Buy the Sony 24-70mm f/2.8GM II for $2,298 at sdp.io/s24ii
Buy the Sigma 24-70 f/2.8 DG DN II Art for $1,199 at SDP.io/2470Art
Tony Northrup reviews the new Sigma 24-70 f/2.8 DG DN II Art lens, a great walking-around, travel and video/vlogging lens that gives you wide angle to moderate telephoto zoom, fast f/2.8 performance for great low-light images, with a lower price and light weight that makes it comfortable to carry around all day.