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Spreadsheet with scores: http://sdp.io/50data
Test images download: http://sdp.io/50pics

Chelsea & Tony Northrup review EVERY 50mm lens for Sony full-frame cameras (those with autofocus, at least). They compare every lens for Price, Design & Size, Center sharpness, Edge sharpness, Closeup/Macro, Contrast, Low-light, Bokeh (size and quality), Starburst, and Sports AF tracking.

0:00 Introduction
0:09 Fast prime bokeh
0:43 Fast prime low-light
1:13 Test methodology
2:21 Sony Zeiss Planar T* FE 50mm F1.4 ZA ($1,500)
3:23 Yongnuo 50mm F1.8 DF ($320)
4:13 Sony Carl Zeiss Sonnar T* FE 55mm F1.8 ZA ($1,000)
5:26 Samyang 45mm F1.8 ($300-400)
6:09 Rokinon/Samyang 50mm f/1.4 FE II ($540)
6:58 Sony FE 50mm F1.8 ($250)
7:40 KEH promo
8:22 Sigma 50mm f/1.4 DG & DG DN HSM Art ($850)
9:40 Sony FE 50mm F2.5 G ($600)
10:39: Sony 50mm f/1.4GM ($1,300) & Sony FE 50mm f/1.2 GM ($2000)