SAB: YONGNUO YN 50mm F1.8S DF DSM Review

Sony Alpha Blog posted its YONGNUO YN 50mm F1.8S DF DSM review and it’s is an exceptional value with lots of benefits for the price. You can read the full review here or you can check out the excerpts from the review below:

The Yongnuo 50mm F1.8S DF DSM (328 euros) is a little gem . Low price, very good ergonomics , very good AF, very good sharpness wide open on 61Mpix and excellent as of F2.8, very good background blur and color rendition , very good bokeh balls wide open , lovely rendering for portraits

The main drawbacks are : bokeh balls shape as of F2.8, build quality ok but not excellent, focus breathing important in video.


  • Very good (F1.8) toExcellent sharpness (as of F2.8) in the centre
  • Smooth background blur up
  • Very good contrast
  • Very good Bokeh balls at f1.8
  • Very good color rendition
  • Very good rendering for portrait and skins
  • Very Good AF
  • Size
  • Price
  • Very good ergonomics for photography (focus hold button and AF/MF button)
  • Low distortion
  • Low CA
  • Short min focusing distance (45cm)
  • Firmware upgrade via USB-C


  • Weight
  • Vignetting at F1.4 but gone at F2.8
  • Good build quality but a bit plastic
  • Bokeh balls no more circular as of F2.8
  • Resistance to flare


  • Focus breathing

YONGNUO YN 50mm F1.8S DF DSM: B&H Photo / Amazon

Yongnuo YN35mm f/2 DF DSM: B&H Photo / Amazon
Yongnuo FE 85mm f/1.8 DF DSM: B&H Photo / Amazon

Yongnuo YN 50mm f/1.8S DA DSM: B&H Photo / Amazon

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