Yongnuo YN50mm F1.8S DF DSM Lens Review

Sony Alpha Blog published their in-depth review for the YONGNUO YN 50mm F1.8S DF DSM lens.

The Yongnuo YN50mm F1.8S DF DSM is an autofocus lens specially designed for Sony E-mount cameras. They say the Sony lens is an exceptional value with lots of benefits for the price.

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

Check out the excerpts from the Yongnuo YN50mm F1.8S DF DSM Lens 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

You can read the full review here

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