Laowa 100mm f/2.8 2X Ultra Macro APO Review
The Laowa 100mm f/2.8 delivers incredible 2:1 macro shots, but you'll trade autofocus, stabilization, and a lightweight build to get them.
Overview
The Laowa 100mm f/2.8 2X Ultra Macro APO is a specialist's tool, and the numbers tell you exactly what you're getting. It scores a 68.3 out of 100 for macro work, landing it in the 88th percentile. That's its whole reason for being. But it's also a 1200g, manual focus-only lens with no stabilization, and its build quality sits in a pretty low 11th percentile. This isn't a lens you buy for versatility. You buy it because you need to see things twice life-size.
Performance
For pure macro performance, this lens delivers. That 2:1 maximum magnification is the headline, letting you fill the frame with subjects most lenses can't even focus on. Its optical quality score is a solid 76th percentile, backed by two low dispersion elements to keep things sharp. But the trade-offs are real. Autofocus and stabilization are both below the 50th percentile, so you're on your own for nailing focus and keeping things steady. And at f/2.8, its aperture is just average, sitting at the 54th percentile. It's fast enough for a macro lens, but don't expect ultra-shallow depth of field for portraits.
Pros & Cons
Pros
- 2:1 maximum magnification puts it in the 88th percentile for macro work. 87th
- Optical quality scores in the 76th percentile, promising sharp images. 82th
- Full-frame coverage on the Pentax K mount, a rare find for specialty glass. 78th
- A relatively fast f/2.8 aperture for a macro lens. 77th
- A dedicated 67mm filter thread allows for standard accessories.
Cons
- Build quality is in the low 11th percentile. 14th
- No autofocus, which scores in the 49th percentile.
- No image stabilization (42nd percentile) makes hand-held macro tricky.
- Weighs a hefty 1200g, making it a burden for anything but a dedicated shoot.
- Versatility score is only 37th percentile; it's a one-trick pony.
Specifications
Full Specifications
Optics
| Type | Macro |
| Focal Length Min | 100 |
| Focal Length Max | 100 |
| Elements | 12 |
| Groups | 10 |
Aperture
| Max Aperture | f/2.8 |
| Min Aperture | f/22 |
| Diaphragm Blades | 13 |
Build
| Mount | Pentax K |
| Format | Full-Frame |
| Weight | 1.2 kg / 2.6 lbs |
| Filter Thread | 67 |
AF & Stabilization
| Stabilization | No |
Focus
| Min Focus Distance | 247 |
| Max Magnification | 2:1 |
Value & Pricing
At $499, the value proposition is simple: you're paying for that 2:1 magnification. There aren't many lenses that can do what this one does, especially for Pentax shooters. You're not getting the build, autofocus, or stabilization of a mainstream lens at this price, but you are getting a unique optical capability. If 2:1 macro is what you need, the price is hard to argue with. If you need a more well-rounded 100mm, you'll need to look elsewhere and spend more.
vs Competition
Compared to more versatile lenses like the Panasonic 14-140mm or the Sony 24-240mm, the Laowa is a completely different beast. Those are travel zooms with stabilization and autofocus, scoring high in versatility. The Laowa is the opposite, excelling only in macro. Even against other primes like the Meike 55mm f/1.8 or the Viltrox 35mm f/1.7, the Laowa gives up autofocus and a brighter aperture for its magnification superpower. It's not better or worse, it's just built for a specific, narrow job.
| Spec | Laowa 100mm f/2.8 2X Ultra Macro APO | Meike Meike 55mm F1.4 Standard Aperture APS-C Frame AF | Tamron Di III Tamron 17-70mm f/2.8 Di III-A VC RXD Lens for | Viltrox Air VILTROX 35mm F1.7 f/1.7 Air AF Lens for Fuji X | 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 | 100mm | 55mm | 17-70mm | 35mm | 24mm | - |
| Max Aperture | f/2.8 | f/1.4 | f/2.8 | f/1.7 | f/1.8 | f/1.4 |
| Mount | Pentax K | Nikon Z | FUJIFILM X | Fujifilm X | Canon RF | Fujifilm X |
| Stabilization | false | true | true | true | true | true |
| Weather Sealed | false | false | false | false | false | true |
| Weight (g) | 1200 | 281 | 544 | 400 | 272 | 320 |
| AF Type | - | STM | Autofocus | STM | Autofocus | STM |
| Lens Type | Macro | - | Zoom | - | Wide-Angle | - |
| Compare | Compare | Compare | Compare | Compare |
| Product | Af | Bokeh | Build | Macro | Optical | Aperture | Versatility | Social Proof | Stabilization |
|---|---|---|---|---|---|---|---|---|---|
| Laowa 100mm f/2.8 2X Ultra Macro APO | 46.4 | 77.1 | 14 | 82.1 | 78.2 | 54.6 | 37.5 | 86.7 | 37.9 |
| Meike 55mm F1.4 Standard Aperture APS-C Frame AF STM Compare | 95.6 | 81.8 | 81.1 | 89.1 | 67.5 | 88.1 | 37.5 | 89.9 | 87.8 |
| Tamron Di III 17-70mm f/2.8 -A VC RXD Compare | 46.4 | 59.2 | 64.3 | 77.7 | 90.8 | 54.6 | 92.5 | 92.1 | 87.8 |
| Viltrox Air 35mm F1.7 f/1.7 AF Compare | 95.6 | 73.6 | 63.4 | 93.2 | 74 | 80.5 | 37.5 | 95.1 | 87.8 |
| Canon RF 24mm f/1.8 Macro IS STM Compare | 46.4 | 81.8 | 87.6 | 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 | 88.8 | 85.3 | 34.6 | 88.1 | 37.5 | 86.7 | 87.8 |
Verdict
This is a fantastic lens if your goal is extreme close-up photography and you're okay with manual focus. That 88th percentile macro score and 2:1 magnification are the real deal. But with build quality in the 11th percentile and no stabilization, it feels like a tool, not a pleasure to use. For a dedicated macro shooter on a budget, especially in the Pentax ecosystem, it's an easy recommendation. For anyone else, its severe lack of versatility makes it a hard sell.