Samyang 50mm f/1.4 AS UMC Review

The Samyang 50mm f/1.4 delivers pro-level bokeh and light gathering for a budget price, but its autofocus and lack of stabilization show where corners were cut.

Focal Length 50mm
Max Aperture f/1.4
Mount Canon EF
Stabilization No
Weather Sealed No
Weight 535 g
AF Type Autofocus
Samyang 50mm f/1.4 AS UMC lens
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Overview

The Samyang 50mm f/1.4 is a classic full-frame prime lens for Canon shooters. It's built for one thing: getting that beautiful, blurry background look on a budget. You get a massive f/1.4 aperture in a solid metal barrel, but you're giving up some modern conveniences to hit that price point.

Performance

This lens is all about the aperture. That f/1.4 opening lands in the 88th percentile, so it pulls in tons of light and creates seriously creamy bokeh, scoring an 85th percentile there. It's a portrait beast, scoring 84/100. Just know the autofocus is average at best, ranking in the 49th percentile, and there's no image stabilization. It's not a travel or walk-around lens, scoring a dismal 39/100 there.

Performance Percentiles

AF 46.4
Bokeh 87.2
Build 65.5
Macro 58
Optical 64
Aperture 88.1
Versatility 37.5
Social Proof 63.3
Stabilization 37.9

Pros & Cons

Pros

  • Strong aperture (88th percentile) 88th
  • Strong bokeh (85th percentile) 87th
  • Strong build (65th percentile) 66th

Cons

Specifications

Full Specifications

Optics

Focal Length Min 50
Focal Length Max 50
Elements 9
Groups 6

Aperture

Max Aperture f/1.4
Min Aperture f/22
Diaphragm Blades 8

Build

Mount Canon EF
Format Full-Frame
Weight 0.5 kg / 1.2 lbs
Filter Thread 77

AF & Stabilization

AF Type Autofocus
Stabilization No

Focus

Min Focus Distance 450

Value & Pricing

For between $330 and $399, you're getting a lot of aperture for your money. If your main goal is shooting portraits with shallow depth of field on a full-frame Canon, this is a very cost-effective way to do it. You're clearly paying less by sacrificing autofocus speed and stabilization.

Price History

CA$480 CA$500 CA$520 CA$540 CA$560 3월 22일4월 21일 CA$500

vs Competition

Compared to the Meike 55mm f/1.8 Pro, the Samyang has a brighter aperture but likely slower AF. Against the Viltrox 35mm f/1.7 or Fujifilm 25mm f/1.7, you're looking at different focal lengths for different camera systems (Canon EF vs. Z-mount or Fuji X). The Panasonic 14-140mm is a superzoom; it's the opposite of this lens—versatile but with a slow, variable aperture. The Samyang is a specialist.

Spec Samyang 50mm f/1.4 AS UMC Meike Meike 55mm F1.4 Standard Aperture APS-C Frame AF Viltrox Air VILTROX 35mm F1.7 f/1.7 Air AF Lens for Fuji X Tamron Di III Tamron 17-70mm f/2.8 Di III-A VC RXD Lens for Sony Canon RF Canon RF 24mm f/1.8 Macro IS STM Lens Fujifilm VILTROX 56mm F1.4 STM APS-C Frame Auto Focus
Focal Length 50mm 55mm 35mm 17-70mm 24mm -
Max Aperture f/1.4 f/1.4 f/1.7 f/2.8 f/1.8 f/1.4
Mount Canon EF Nikon Z Fujifilm X Sony E-Mount, Sony E-Mount, Sony E-Mount, Sony E-Mount, Sony E-M Canon RF Fujifilm X
Stabilization false true true true true true
Weather Sealed false false false false false true
Weight (g) 535 281 400 544 272 320
AF Type Autofocus STM STM Autofocus Autofocus STM
Lens Type - - - Wide-Angle Zoom Wide-Angle -
Compare Compare Compare Compare Compare
Product AfBokehBuildMacroOpticalApertureVersatilitySocial ProofStabilization
Samyang 50mm f/1.4 AS UMC 46.487.265.5586488.137.563.337.9
Meike 55mm F1.4 Standard Aperture APS-C Frame AF STM Compare 95.681.881.289.167.588.137.589.987.8
Viltrox Air 35mm F1.7 f/1.7 AF Compare 95.673.663.593.27480.637.595.187.8
Tamron Di III 17-70mm f/2.8 -A VC RXD Compare 46.459.264.477.490.854.692.595.187.8
Canon RF 24mm f/1.8 Macro IS STM Compare 46.481.887.88182.575.837.59899.9
Fujifilm VILTROX 56mm F1.4 STM APS-C Frame Auto Focus Standard Prime Compare 95.681.888.985.234.688.137.586.787.8

Verdict

Buy this if you shoot Canon full-frame and want an affordable, fast 50mm prime specifically for portraits or low-light stills. Skip it if you need snappy autofocus for action, shoot video handheld, or want a lightweight lens for travel.