DPReview TV: Sigma 28-70mm F2.8 reviewDPR 25 February, 2021The Sigma 28-70mm F2.8 DG DN is small, but how does it perform optically? Chris has the answers. Meanwhile, Jordan begins his stint filming episodes with the Pentax K-01. Let the fun begin.Subscribe to our YouTube channel to get new episodes of DPReview TV every week.IntroductionSize and weightSample photosBuild qualityFlare and ghostingSunstarsAutofocusFocus breathingBokehChromatic aberrationsDistortionSharpnessWho’s it for?Sample photos from this episode