Samyang 24-70mm f/2.8 AF Review
The Samyang 24-70mm f/2.8 delivers pro-level sharpness at a hobbyist price, but its autofocus and build quality hold it back from being a true all-rounder.
Overview
If you're a Sony shooter looking for a budget-friendly 24-70mm f/2.8 zoom, the Samyang 24-70mm f/2.8 AF is a name you'll see pop up. It's a third-party lens that promises the classic standard zoom range and fast aperture at a price well below the Sony GM version. People often search for 'cheap Sony 24-70 f2.8' or 'Samyang 24-70 review', and this lens is a direct answer to that. It covers full-frame sensors, has autofocus, and packs a bright f/2.8 aperture that's great for low light and shallow depth of field. At around $599, it's positioned as a value pick, but you're naturally wondering what you give up for that lower price.
Performance
Optically, this lens is surprisingly sharp. It scores in the 94th percentile for optical quality, which means the glass itself is very good. In practice, you'll get crisp, detailed images across the frame, especially when stopped down a bit from f/2.8. The autofocus, however, lands in the 48th percentile. It uses a linear stepless motor that's quiet, which is great for video, but it's not the fastest or most confident system out there. For still subjects and controlled environments, it's fine. For fast-moving action or tricky low-light focus, it might hunt a bit. The lack of stabilization (42nd percentile) also means you'll be relying on your camera's in-body stabilization for handheld shots.
Pros & Cons
Pros
- Excellent optical sharpness for the price. 97th
- Fast f/2.8 aperture is consistent throughout the zoom range.
- Quiet AF motor is good for video work.
- Significantly cheaper than first-party Sony GM lenses.
- Full-frame coverage on a native Sony E mount.
Cons
- Autofocus performance is just okay, not great for fast action.
- No image stabilization built into the lens.
- Build quality feels a bit cheap (14th percentile).
- It's heavy at 1000g, which makes it unbalanced on smaller bodies.
- Not weather-sealed, so keep it away from dust and moisture.
Specifications
Full Specifications
Optics
| Type | Zoom |
| Focal Length Min | 70 |
| Focal Length Max | 70 |
| Elements | 17 |
| Groups | 14 |
| Coating | Ultra Multi-Coating (UMC) |
Aperture
| Max Aperture | f/2.8 |
| Min Aperture | f/22 |
| Constant | Yes |
| Diaphragm Blades | 9 |
Build
| Mount | Sony E |
| Format | Full-Frame |
| Weather Sealed | Yes |
| Weight | 1.0 kg / 2.2 lbs |
| Filter Thread | 82 |
AF & Stabilization
| AF Type | Autofocus |
| Stabilization | No |
Focus
| Min Focus Distance | 351 |
| Max Magnification | 1:3.7 |
Value & Pricing
At $599, the value proposition is clear. You're getting pro-level optical performance in a package that costs a fraction of the Sony 24-70mm f/2.8 GM II. The trade-offs are in the handling and features: slower autofocus, no stabilization, and less robust build. If your priority is image quality on a budget and you don't mind the compromises, this lens saves you a lot of money. If you need the absolute best AF or build, you'll need to look at more expensive options.
Price History
vs Competition
Let's name some names. The obvious competitor is the Sony 24-70mm f/2.8 GM II. It's better in every way—faster AF, better build, lighter, and sharper—but it costs over three times as much. For a more direct price comparison, look at the Sigma 24-70mm f/2.8 DG DN Art. It's usually a couple hundred dollars more than the Samyang, but it offers much better build quality, faster AF, and weather sealing. The Tamron 28-75mm f/2.8 G2 is another fantastic alternative; it's sharper, has better AF and stabilization, and is similarly priced. The Samyang wins on pure optics-per-dollar, but the Tamron and Sigma are more well-rounded lenses.
| Spec | Samyang 24-70mm f/2.8 AF |
|---|---|
| Focal Length | 70mm |
| Max Aperture | f/2.8 |
| Mount | Sony E |
| Stabilization | false |
| Weather Sealed | true |
| Weight (g) | 1000 |
| AF Type | Autofocus |
| Lens Type | Zoom |
| Product |
|---|
Verdict
So, should you buy this? If you're a hobbyist, a content creator on a tight budget, or someone who values ultimate sharpness above all else and can work around slower autofocus, the Samyang 24-70mm f/2.8 is a compelling pick. The image quality is genuinely excellent. But for most people, especially those who shoot events, weddings, or anything unpredictable, the autofocus and build quality limitations are hard to ignore. For a bit more money, the Tamron 28-75mm G2 or Sigma 24-70mm Art are safer, more capable all-around choices. This Samyang is a specialist: amazing glass in a mediocre body.