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Samyang 50 mm f/1.4 AS UMC

Manufacturer Samyang
Model 50 mm f/1.4 AS UMC
Lens style Normal
Focal length 50 mm
Maximum aperture f/1.4 - 22
Angle of view 46.2 o
Closest focusing distance 0.45 m
Maximum magnification 1:1.4
Minimum aperture 22
Number of diaphragm blades 8
Auto focus type MF
Lens Construction 9 elements / 6 groups
Filter diameter 77 mm
Macro No
Available mounts Canon EF
Nikon F
Sony A / Minolta
Pentax K
Four Thirds
Micro Four Thirds
Samsung NX
Sony E
Fujifilm X
Canon EF-M
Sony FE
Dimensions 74.7 x 81.6 mm
Weight 535 g
Additional information Premier: 25.08.2014
Angle of view:
35 mm: 46.2˚
APS-C: 30.8˚ (Canon EOS i M: 29.0˚)
MFT and 4/3: 23.6˚
Average rating (1 owners reviews)
Build quality
Optical quality
Value for money


3.67 Average
Owners reviews (1)
  1. joan
    joan 12 July 2023, 21:30
    Build quality
    Optical quality
    Value for money


    IP 88.125.x.x
    Owner since: 2 years
    Price: 450€
    User profile: Amateur

    Cons: - Definition at 1.4 is average, although general contrast is good. - A lot of barrel distortion. - A bit too long in size. - The outer shell is made of high-quality plastic. But still, plastic.

    Pros: - General contrast is high at every aperture. - Definition is good at f:2, excellent from f:2.8 onward. - Low LOCA - Low coma aberation. - Somewhat limited fallout (vignetting). - Nice bokeh, whith a smooth transition between the subject and the blurred background.

    Summary: Compared with a classic lens like the Nikon 50 1.4 Ai-S, the Samyang is more useful at its full aperture, thanks probably to the good general constrast of the image and the low chromatic aberation. It is not on par with more elaborate modern designs like the Sigma 50 1.4 Art, though. The f:2 aperture gives good results, with a still nice bokeh. At smaller apertures, the Samyang is excellent. The coma aberation is very low compared to the Nikon 50 Ai-S 1.4 and the 1.8. Really nice when you shoot at night, where there\'s plenty of abrupt transitions between highlights and pitch dark. The Samyang is a bigger lens than the old Nikon. The build is fine but less apealing than all-metal Voigtländer lenses or even Ai-S Nikon lenses.

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