Sirui 23AS12E-B
The f/1.2 maximum aperture on a 35mm-equivalent lens delivers strong subject isolation and smooth, 11-blade bokeh in a compact 380g body. Its STM autofocus is quiet with minimal focus breathing, supporting reliable eye and object tracking for hybrid shooters. This lens is best for street and travel photographers on Fujifilm X-mount who prioritize shallow depth of field over weather sealing.
概览
The 30-Second Version
A f/1.2 autofocus prime for under $300 that actually delivers the cinematic goods. Soft wide open, but stop down a touch and this thing punches way above its price.
Pros & Cons
优点
- Ridiculous value for a f/1.2 autofocus prime 93rd
- Beautiful bokeh with that 11-blade diaphragm 85th
- Solid aluminum/carbon build at 380g 71st
- USB-C port for firmware updates is a nice touch 65th
缺点
- Soft wide open at f/1.2, no way around it
- Chromatic aberration can get ugly in backlit scenes
- No aperture ring, which Fuji shooters will miss
- Autofocus gets confused in demanding situations
用户评价
The Word on the Street
用户口碑如何随时间变化
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基于 37 条带日期的客户评价,按日历季度分组。分期分析为英文。
实测数据
Performance
The f/1.2 aperture is the headline act here, and it delivers. Low-light shooting is genuinely impressive, and the 11-blade diaphragm produces bokeh that's soft and creamy without looking like a blurry mess. Autofocus is quick and quiet thanks to the STM motor, and eye tracking works well for both stills and video. But here's the catch: wide open at f/1.2, sharpness takes a noticeable dip. Stop down to f/2 or f/2.8 and it cleans up nicely, but if you're buying this specifically to shoot everything at f/1.2, you'll see some softness and chromatic aberration in high-contrast scenes.
Specifications
Full Specifications
Optics
| Type | Prime |
| Focal Length Min | 23 |
| Focal Length Max | 23 |
| Elements | 12 |
| Groups | 11 |
| Coating | high refractive elements |
Aperture
| Max Aperture | f/16 |
| Min Aperture | f/1.2 |
| Constant | Yes |
| Diaphragm Blades | 11 |
Build
| Mount | Fujifilm X |
| Format | APS-C |
| Weight | 0.4 kg / 0.8 lbs |
| Filter Thread | 58 |
AF & Stabilization
| AF Type | STM |
| Stabilization | No |
Focus
| Min Focus Distance | 300 |
vs Competition
The obvious competitor is the Viltrox AF 13mm F1.4 XF, which is wider and slightly sharper wide open, but it's also more expensive and doesn't have the same bokeh character. The Sigma Contemporary 18-50mm f/2.8 DC DN is a zoom, so it's more versatile, but you're giving up two full stops of light and that f/1.2 look. If you want a fast prime for street and travel, the Sirui wins on price and character. If you need flexibility, get the Sigma.
| Spec | Sirui 23AS12E-B | Tamron Di III VC 28-300mm f/4-7.1 VXD | Sigma Contemporary 18-50mm f/2.8 DC DN | Panasonic Leica DG Vario-Elmarit H-ES12035 | Sony E SEL18135 | 7Artisans Lite Series AutoFocus 35mm F1.8 Full Frame |
|---|---|---|---|---|---|---|
| Focal Length | 23mm | 28-300mm | 18-50mm | 12-35mm | 18-135mm | 35mm |
| Max Aperture | f/16 | f/4 | f/2.8 | f/2.8 | f/3.5 | f/1.8 |
| Mount | Fujifilm X | Sony E | Sony E | Micro Four Thirds | Sony E | Nikon Z |
| Stabilization | false | true | false | true | true | true |
| Weather Sealed | false | true | true | true | false | false |
| Weight (g) | 380 | 590 | 290 | 306 | 326 | 426 |
| AF Type | STM | VXD linear motor | stepping motor | Autofocus | Linear motor | STM |
| Lens Type | prime | zoom | zoom | zoom | zoom | prime |
| Compare | Compare | Compare | Compare | Compare |
| 产品 | AF | Bokeh | Build | Macro | Optical | Aperture | User Sentiment | Versatility | 用户口碑 | Stabilization |
|---|---|---|---|---|---|---|---|---|---|---|
| Sirui 23AS12E-B | 85.4 | 47.2 | 65.2 | 70.9 | 61.9 | 44 | 63.8 | 33.5 | 93.4 | 36.1 |
| Tamron Di III VC 28-300mm f/4-7.1 VXD Compare | 97.7 | 81 | 63.8 | 85.3 | 96.5 | 69.4 | 90.9 | 97.8 | 51.7 | 81.3 |
| Sigma Contemporary 18-50mm f/2.8 DC DN Compare | 85.4 | 84.5 | 85.4 | 91.4 | 81.3 | 86.3 | 80.5 | 78.5 | 89.9 | 36.1 |
| Panasonic Leica DG Vario-Elmarit H-ES12035 Compare | 53.8 | 84.5 | 84.6 | 49.9 | 85.7 | 86.3 | 90.9 | 80.6 | 85.4 | 96.7 |
| Sony E SEL18135 Compare | 97.7 | 78.5 | 71.7 | 39.2 | 77.7 | 80.2 | 45.2 | 95.9 | 89.9 | 81.3 |
| 7Artisans Lite Series AutoFocus 35mm F1.8 Full Frame Compare | 85.4 | 96.6 | 60.3 | 97.2 | 61.9 | 94.5 | 90.9 | 33.5 | 45.2 | 81.3 |
价格
Value & Pricing
At USD 279 in the US, this is a steal. European buyers should shop around though, prices swing from EUR 311 to EUR 346 depending on the store. The best deal we're seeing is at the lower end of that range, so don't just grab the first listing you see. For what you're getting, a fast f/1.2 prime with autofocus and solid build quality, this is one of the best value lenses on the market right now.
Amazon 1 个报价 最低 €311
我们自 2026年7月18日 起追踪该产品的价格。数据增多后将显示图表。
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Overview
The Sirui Sniper 23mm f/1.2 is the lens that makes you question why you'd ever pay three times more for a first-party Fuji prime. It's a 35mm full-frame equivalent with a genuinely fast f/1.2 aperture, autofocus that actually works, and a build that feels way more premium than the price suggests. The one thing to know? You're getting 90% of the cinematic look for about 30% of the cost.
Common Questions
Q: Is the lens supposed to rattle when I shake it?
Yes, that's normal. The focus elements float when there's no power. Once you mount it and turn the camera on, the motor engages and the rattle goes away.
Q: Does this lens have an aperture ring?
No, and that's a bummer for Fuji shooters. You'll be changing aperture from the camera body, which feels wrong on an X-mount lens but you get used to it.
Q: Is it sharp enough for professional work?
Stopped down to f/2.8 or f/4, absolutely. Wide open at f/1.2 it's soft and you'll see chromatic aberration. For paid work, treat f/1.2 as an emergency low-light option, not your default.
Who Should Skip This
If you need razor-sharp images wide open or you shoot a lot of high-contrast backlit scenes, this isn't your lens. The chromatic aberration at f/1.2 will drive you nuts. Go grab the Viltrox AF 13mm F1.4 XF instead, or save up for a first-party Fuji prime if you can't live with the compromises.
Verdict
Buy it. The Sirui Sniper 23mm f/1.2 is the best budget fast prime for Fuji X-mount right now. Yes, it's soft wide open and the chromatic aberration can be annoying, but those are compromises you can work around. The value proposition is just too strong to ignore.