Sirui Aurora 35mm f/1.4 35mm
A bright f/1.4 aperture and 13-blade diaphragm deliver smooth bokeh, with full-frame coverage and autofocus in a compact 490g body. Tactile controls like an AFL button, AF/MF switch, and iris lock with click on/off add video versatility, and a USB-C port enables firmware updates. Portrait photographers benefit most, with the fast aperture and 35mm focal length ideal for shallow depth-of-field work in low light.
Snapshot
The 30-Second Version
Stunning bokeh and a bright f/1.4 aperture at a tempting price, but quality control is a mess. If you get a good copy, it's bargain of the year. If you don't, it's unusable. Buy from a place with easy returns.
Pros & Cons
Pros
- Gorgeous bokeh that punches way above its price point. 99th
- Bright f/1.4 aperture for low light and subject separation. 96th
- Compact and lightweight at 490g, easy to carry all day.
- Dedicated iris lock and click switches make video work smoother.
Cons
- Copy-to-copy variance is brutal—you might get a lemon.
- Corner sharpness is disappointing even on good samples.
- No optical stabilization to pair with the bright aperture.
- Questionable weather sealing, despite the marketing claims.
What owners think
The Word on the Street
How owner sentiment changed over time
ExclusiveBased on when customers actually wrote their reviews — so you can see whether early praise held up.
Based on 5 dated customer reviews, grouped by calendar quarter. Period analysis is in English.
The proof
Performance
That f/1.4 aperture lands in the 94th percentile, and it shows. In low light, this lens pulls in a ton of light, and the 13-blade diaphragm creates bokeh that's among the best we've seen, sitting in the 98th percentile. Sharpness is a coin toss. Some copies are crisp in the center, but corners often fall apart, and chromatic aberration loves to crash the party. Autofocus is about average for a modern mirrorless lens—decent for stills, smooth enough for video, but if you've used a Sony GM you'll notice it's a beat slower. Optically, it's middle of the pack overall, and the complete lack of stabilization means you'll need steady hands or a tripod for slower shutter speeds.
Specifications
Full Specifications
Optics
| Focal Length Min | 35 |
| Focal Length Max | 35 |
| Elements | 16 |
| Groups | 11 |
Aperture
| Max Aperture | f/1.4 |
| Min Aperture | f/16 |
| Diaphragm Blades | 13 |
Build
| Mount | Nikon Z |
| Format | Full-Frame |
| Weight | 0.5 kg / 1.1 lbs |
| Filter Thread | 62 |
AF & Stabilization
| AF Type | Autofocus |
| Stabilization | No |
Focus
| Min Focus Distance | 351 |
| Max Magnification | 1:7.14 |
vs Competition
Stacked against its pricier cousins, the Sirui's biggest rival is the Sony FE 35mm f/1.4 GM. That lens is sharper, faster to focus, and far more consistent, but it costs a fortune. The Sirui is the budget alternative that gets you in the ballpark, though you're playing a lottery. Among the other lenses in our database, the Canon RF 28-70mm f/2.8 gives you a zoom range and constant brightness, but can't touch the Sirui's subject isolation. Nikon's 18-140mm is a superzoom, not a low-light specialist. If you're set on a fast 35mm prime and don't want to roll the dice, Sigma or Tamron's newer glass might be safer bets, but they'll cost more and lack this lens's full-frame f/1.4 for Nikon Z.
| Spec | Sirui Aurora 35mm f/1.4 35mm | Sigma Contemporary 16-300mm f/3.5-6.7 DC OS | Tamron Di III 18-300mm f/3.5-6.3 Di III-A VC VXD | Nikon NIKKOR Z 28-400mm f/4-8 VR | Panasonic LUMIX G Leica DG Vario-Elmarit H-ES50200 | Viltrox 13mm F1.4 f/1.4 E STM Auto Focus Ultra Wide Angle |
|---|---|---|---|---|---|---|
| Focal Length | 35mm | 16-300mm | 18-300mm | 28-400mm | 50-200mm | 13mm |
| Max Aperture | f/1.4 | f/3.5 | f/3.5 | f/4 | f/2.8 | f/1.4 |
| Mount | Nikon Z | Sony E | Fuji X | Nikon Z | Micro Four Thirds | Sony E |
| Stabilization | false | true | true | true | true | true |
| Weather Sealed | false | true | false | true | true | false |
| Weight (g) | 503 | 615 | 92 | 726 | 655 | 415 |
| AF Type | Autofocus | HLA | VXD linear motor | STM | linear motor | STM |
| Lens Type | - | zoom | zoom | zoom | telephoto | Wide-Angle |
| Compare | Compare | Compare | Compare | Compare |
| Product | Af | Bokeh | Build | Macro | Optical | Aperture | User Sentiment | Versatility | Social Proof | Stabilization |
|---|---|---|---|---|---|---|---|---|---|---|
| Sirui Aurora 35mm f/1.4 35mm | 54.5 | 98.9 | 48.1 | 60.6 | 62 | 96.4 | 2 | 34.2 | 14.1 | 36 |
| Sigma Contemporary 16-300mm f/3.5-6.7 DC OS Compare | 54.5 | 84.3 | 59 | 85.9 | 98.9 | 76.9 | 0 | 99.6 | 78 | 99.1 |
| Tamron Di III 18-300mm f/3.5-6.3 Di III-A VC VXD Compare | 98.3 | 74.9 | 96.6 | 87.7 | 74.6 | 76.9 | 30.2 | 99.2 | 83.1 | 81.3 |
| Nikon NIKKOR Z 28-400mm f/4-8 VR Compare | 86.9 | 77.8 | 51.6 | 81.3 | 97 | 71.2 | 0 | 98.9 | 83.1 | 98.3 |
| Panasonic LUMIX G Leica DG Vario-Elmarit H-ES50200 Compare | 98.3 | 86.1 | 55.3 | 23.1 | 95.9 | 83.7 | 91.7 | 88.3 | 65.9 | 96.4 |
| Viltrox 13mm F1.4 f/1.4 E STM Auto Focus Ultra Wide Angle Compare | 86.9 | 96.6 | 42.1 | 89.4 | 82.6 | 96.4 | 80.8 | 34.2 | 74 | 81.3 |
Price
Value & Pricing
Prices swing from $549 to $752 depending on where you look. At the low end, this lens is an absolute steal if you land a solid copy. But that's a big "if." The $200+ spread means you should definitely shop around and, more importantly, buy from a retailer that won't hassle you with returns. When it works, it delivers 90% of the Sony GM experience for half the cash. When it doesn't, it's a paperweight. For the risk-tolerant, it's a great value. For everyone else, the potential headache might not be worth the savings.
B&H Photo 1 offers From CA$752
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Overview
The Sirui Aurora 35mm f/1.4 is a full-frame prime that promises a lot for the money. You get a bright f/1.4 aperture, 13 diaphragm blades for some genuinely creamy bokeh, and a compact build that feels right at home on a Nikon Z or Fuji X body. On paper, it's the kind of lens that makes you wonder why you'd pay three times as much for a first-party option.
But here's the catch: Sirui's quality control is all over the place. Our data shows user sentiment sitting in the gutter at the 2nd percentile, and real buyers report everything from "tack sharp" to "shockingly bad." If you get a good copy, it's a steal. If not, you'll be staring at soft corners and wishing you'd bought from a store with a generous return policy.
Common Questions
Q: Is this lens actually weather sealed?
It has some dust and moisture resistance, but it's not fully weather sealed like a high-end Nikon or Sony lens, so don't treat it to a downpour.
Q: Will this work on my Fuji X-T5?
Yes, but since it's a full-frame lens you'll get a 52.5mm equivalent field of view, and you're carrying glass designed for a larger sensor you aren't fully using.
Q: How's the autofocus for video?
It's smooth and mostly silent, making it usable for video, but it's not as snappy as a Sony GM lens if you're pulling focus rapidly.
Who Should Skip This
Skip this lens if you need a reliable workhorse for paid gigs, or if corner-to-corner sharpness matters for your landscapes and architecture. The copy lottery is real, and a bad unit could ruin a shoot. If you can't stomach returns and test shots, look at first-party glass or a Tamron prime.
Verdict
This lens is for the budget-conscious shooter who's willing to test a copy thoroughly and isn't afraid to return it. If you land a good one, the bokeh and low-light chops are phenomenal for the price. But if you're a pro who needs out-of-the-box reliability, or you shoot architecture and landscapes where corner sharpness is non-negotiable, keep looking. The Aurora is a high-risk, high-reward gamble, and for some folks, that's exactly the thrill they want.