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
67.1 综合评分

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 46.3
Bokeh 87.5
Build 66.6
Macro 57.2
Optical 65.6
Aperture 88.2
Versatility 37.3
Social Proof 64.6
Stabilization 37.7

Pros & Cons

Pros

  • Strong aperture (88th percentile) 88th
  • Strong bokeh (85th percentile) 88th
  • Strong build (65th percentile) 67th

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.

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.

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.