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.
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.
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
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 | Af | Bokeh | Build | Macro | Optical | Aperture | Versatility | Social Proof | Stabilization |
|---|---|---|---|---|---|---|---|---|---|
| Samyang 50mm f/1.4 AS UMC | 46.4 | 87.2 | 65.5 | 58 | 64 | 88.1 | 37.5 | 63.3 | 37.9 |
| Meike 55mm F1.4 Standard Aperture APS-C Frame AF STM Compare | 95.6 | 81.8 | 81.2 | 89.1 | 67.5 | 88.1 | 37.5 | 89.9 | 87.8 |
| Viltrox Air 35mm F1.7 f/1.7 AF Compare | 95.6 | 73.6 | 63.5 | 93.2 | 74 | 80.6 | 37.5 | 95.1 | 87.8 |
| Tamron Di III 17-70mm f/2.8 -A VC RXD Compare | 46.4 | 59.2 | 64.4 | 77.4 | 90.8 | 54.6 | 92.5 | 95.1 | 87.8 |
| Canon RF 24mm f/1.8 Macro IS STM Compare | 46.4 | 81.8 | 87.8 | 81 | 82.5 | 75.8 | 37.5 | 98 | 99.9 |
| Fujifilm VILTROX 56mm F1.4 STM APS-C Frame Auto Focus Standard Prime Compare | 95.6 | 81.8 | 88.9 | 85.2 | 34.6 | 88.1 | 37.5 | 86.7 | 87.8 |
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.