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Samsung NX 20-50 mm f/ 3.5-5.6 Lens

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Samsung NX 20-50 mm f/ 3.5-5.6 lens

Samsung NX 20-50 mm f/ 3.5-5.6 lens

Samsung NX 20-50 mm f/ 3.5-5.6 lens

Samsung NX 20-50 mm f/ 3.5-5.6 lens

Samsung NX 20-50 mm f/ 3.5-5.6 lens


Samsung NX 20-50 mm f/ 3.5-5.6 MTF Chart

Optical design

Samsung NX 20-50 mm f/ 3.5-5.6 optical design

Format: APS-C (crop)

Type: Zoom lens

Focusing: Auto Focus (AF)

Lens mounts: Samsung NX

Optical design: 9 elements in 8 groups (1 Asph and 1 ED lenses)

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Owners (2)

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Average price: $200


Focal lengthMax. apertureMin. apertureBladesMin. Focus (m.)Filter Ø (mm.)Weight (gr/oz)Length (mm/in)
20mm - 50mmf/3.5 - f/5.6f/2270.2840.5119/4,240/1,6

Additional information:
  • Equivalent focal length: 30.8-77 mm
  • Angle of view: 70.2˚ ~ 31.4˚
  • Max. magnification: 0.22
  • Diameter: 64 mm

The Samsung NX 20-50mm F3.5-5.6(S2050NB) is a compact standard zoom lens  for Samsung NX mirrorless interchangeable lens cameras. The lens features an i-Function system, which allows you  to easily and quickly adjust all the manual settings of the camera by pressing the button and turning the focus ring.


  •  small, compact  size
  •  I-Function support
  •  good resolutionat the center(exceptthe combination of 50 mmand F/5.6),
  •  excellent controlof chromaticaberrations,
  •  lowvignetting,
  •  slight distortion at long focal lengths,
  •  good control ofcomaatmaximum focal length .


  •  resolution  at the frame centerat 50 mm and  F/5.6 leaves much to be desired,
  •  resolutionat the frame bordercould be  better,
  •  moderateperformancein bright backlit conditions,
  •  very highdistortion atthe closest focal length,
  •  moderatecontrol ofcoma atthe closest focal length,
  •  plastic  tripod mount.

Links to online resources:
Posted by: dv   Date of publication: 25.09.2012

Mechanical quality3.005
Optical quality4.005
Pricing / Value4.005
Overall lens rating

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