Sirui 23AS12E-B

★★★★★ 4.8 (427)

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.

Focal length 23mm
Aperture f/16
Mount Fujifilm X
Weight 380 g
af type STM
lens type prime
Sirui 23AS12E-B lens
67 Puntuación global
También disponible en:

Resumen

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

Ventajas

  • 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

Desventajas

  • 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

Opinión de los propietarios

The Word on the Street

4.8/5 (427 reviews)
👍 Owners can't stop talking about the value, they feel like they got away with something.
🤔 Sharpness wide open is the big complaint, plenty of users say f/1.2 is more of a marketing number than a usable aperture.
👎 A few buyers got units with autofocus quirks or worse, one reported a dead lens mount out of the box.

Cómo cambió la opinión de los propietarios con el tiempo

Exclusiva

Según cuándo escribieron realmente sus opiniones los clientes, para ver si los elogios iniciales se mantuvieron.

La opinión de los propietarios ha mejorado con el tiempo
85/100Nuestro análisis de opinión con IAconfianza alta · 48 fuentes · jun 2026
1★2★3★4★5★Q1 '23: 5.0★ · 1 opiniónQ4 '23: 3.0★ · 2 opinionesQ1 '24: 3.0★ · 1 opiniónQ4 '24: 5.0★ · 1 opiniónQ1 '25: 4.4★ · 5 opinionesQ2 '25: 5.0★ · 4 opinionesQ3 '25: 5.0★ · 3 opinionesQ4 '25: 4.5★ · 10 opinionesQ1 '26: 5.0★ · 8 opiniones121111543108Q1 '23Q4 '23Q1 '24Q2 '24Q3 '24Q4 '24Q1 '25Q2 '25Q3 '25Q4 '25Q1 '26
Valoración mediaSatisfechos (4-5★)Insatisfechos (1-2★)Altura de la barra = número de opiniones

Basado en 37 opiniones de clientes con fecha, agrupadas por trimestre natural. El análisis por periodo está en inglés.

Las pruebas

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.

Performance Percentiles

AF 85.4
Bokeh 47.2
Build 65.2
Macro 70.9
Optical 61.9
Aperture 44.1
User Sentiment 63.8
Versatility 33.5
Valoración social 93.3
Stabilization 36.1

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 Nikon NIKKOR Z 17-28mm f/2.8 Sony E SEL18135
Focal Length 23mm 28-300mm 18-50mm 12-35mm 17-28mm 18-135mm
Max Aperture f/16 f/4 f/2.8 f/2.8 f/2.8 f/3.5
Mount Fujifilm X Sony E Sony E Micro Four Thirds Nikon Z Sony E
Stabilization false true false true false true
Weather Sealed false true true true true false
Weight (g) 380 590 290 306 450 326
AF Type STM VXD linear motor stepping motor Autofocus Stepping Motor Linear motor
Lens Type prime zoom zoom zoom zoom zoom
Compare Compare Compare Compare Compare
Producto AFBokehBuildMacroOpticalApertureUser SentimentVersatilityValoración socialStabilization
Sirui 23AS12E-B 85.447.265.270.961.944.163.833.593.336.1
Tamron Di III VC 28-300mm f/4-7.1 VXD Compare 97.78163.885.496.569.590.997.851.681.4
Sigma Contemporary 18-50mm f/2.8 DC DN Compare 85.484.585.491.581.386.480.578.589.836.1
Panasonic Leica DG Vario-Elmarit H-ES12035 Compare 53.884.584.65085.786.490.980.685.496.7
Nikon NIKKOR Z 17-28mm f/2.8 Compare 85.48974.585.487.686.490.967.867.336.1
Sony E SEL18135 Compare 97.778.671.739.277.780.245.295.989.881.4

Precio

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.

Seguimos los precios de este producto desde el 18 jul 2026. El gráfico aparecerá cuando tengamos más datos.

Leer más

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.

Usage Scores

Macro (63.8)General (67.1)Budget (61.8)Street (59.9)Travel (49.7)Portrait (56.9)Landscape (49.3)Professional (56.2)Video Cinema (66)Wildlife Sports (49.1)

Otras configuraciones1

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