Sirui Sirui Astra T1.8 1.33x AF Anamorphic 3-Cine Lens Review
The Sirui Astra anamorphic lens kit brings a true cinematic widescreen look to Sony mirrorless cameras, complete with autofocus—a rare combo at this price. But is the convenience worth the trade-offs?
The 30-Second Version
The Sirui Astra T1.8 1.33x AF 3-Cine Lens Kit is a gateway to anamorphic filmmaking for Sony mirrorless users. It bundles three sharp primes (50, 75, 100mm) that deliver classic oval bokeh and neutral flares in a 2.4:1 aspect ratio. The included autofocus is a rare convenience at this price, though stabilization is missing.
Overview
If you're a Sony shooter looking to get into anamorphic video without selling a kidney, the Sirui Astra T1.8 1.33x AF 3-Cine Lens Kit is probably on your radar. This bundle gives you three prime lenses—50mm, 75mm, and 100mm—all with that signature widescreen 2.4:1 aspect ratio, oval bokeh, and those classic neutral streak flares. At around $2,550 for the set, it's positioned as a gateway into the anamorphic world for indie filmmakers, YouTubers, and content creators who want a cinematic look without the complexity of manual-only cinema lenses. The key feature here is the autofocus, which is a rare find in anamorphic lenses at this price point, making it a lot more approachable for solo operators or run-and-gun shooters.
Performance
Our database puts the optical performance in the 96th percentile, which is impressive. In practice, that means these lenses are sharp, even wide open at T1.8, with minimal chromatic aberration. The anamorphic characteristics—the oval bokeh and vertical stretch of out-of-focus backgrounds—are pronounced and look great. The autofocus system lands in the 45th percentile, which tells you it's functional but not class-leading. It's fine for controlled shots or slower-paced work, but you wouldn't rely on it for fast-paced documentary shooting. The lack of stabilization (35th percentile) means you'll need a gimbal or steady hands, especially on the longer 100mm lens.
Pros & Cons
Pros
- Excellent optical quality for the price (96th percentile). 95th
- Autofocus is a huge convenience for solo shooters.
- Complete 3-lens kit covers useful focal lengths for narrative work.
- Neutral streak flares are cinematic without being overly colorful.
- Relatively compact and lightweight for anamorphic lenses.
Cons
- No optical stabilization in any lens. 30th
- Autofocus performance is just okay, not great.
- Minimum focus distance of 0.5m limits close-up shots.
- Not weather-sealed.
- The T1.8 aperture is good, but not exceptionally fast for low light (29th percentile).
The Word on the Street
Specifications
Full Specifications
Optics
| Focal Length Min | 50 |
| Focal Length Max | 50 |
| Elements | 18 |
| Groups | 14 |
Aperture
| Diaphragm Blades | 11 |
Build
| Mount | Sony E |
| Format | Full-Frame (44 mm Image Circle) |
| Weight | 0.6 kg / 1.4 lbs |
| Filter Thread | 67 |
AF & Stabilization
| AF Type | Autofocus |
| Stabilization | No |
Focus
| Min Focus Distance | 500 |
| Max Magnification | 1:7.2 |
Value & Pricing
At $2,550 for three dedicated anamorphic lenses with autofocus, the value proposition is strong if you're specifically chasing that look. The closest alternatives are manual anamorphic adapters or single manual lenses from brands like SLR Magic, which often cost nearly as much for one focal length without AF. You're paying for the convenience of a matched set and autofocus. For pure image quality, a set of three excellent spherical Sony GM primes would cost more, but they wouldn't give you the anamorphic look. This kit sits in a sweet spot for budget-conscious creators who want the aesthetic without the full cine workflow hassle.
vs Competition
The most direct competitor is really other anamorphic options. A single Sirui 50mm anamorphic lens is cheaper, but the three-lens kit offers more versatility. Compared to using an anamorphic adapter on a spherical lens, the Sirui kit is more integrated and likely sharper. If you're considering spherical lenses like the Meike 55mm F1.8 or Viltrox primes mentioned in our data, know that you're comparing apples and oranges—those are great photo/video hybrids, but they won't give you the 2.4:1 squeeze, oval bokeh, or flares. For filmmakers, the choice is between the Sirui's accessible anamorphic look or the potentially better autofocus and stabilization of a standard lens.
| Spec | Sirui Sirui Astra T1.8 1.33x AF Anamorphic 3-Cine Lens | Meike Meike 55mm F1.8 Pro Full Frame AF STM Lens High | Viltrox VILTROX 35mm F1.7 Lens, X Mount 35mm F1.7 Auto | Canon Canon - RF28-70mm F2.8 IS STM Standard Zoom Lens | Panasonic Panasonic LUMIX G Vario 14-140mm f/3.5-5.6 II | Fujifilm VILTROX 25mm F1.7 f/1.7 AF Lens for Fuji X Mount, |
|---|---|---|---|---|---|---|
| Focal Length | 50mm | 55mm | 35mm | 28-70mm | 14-140mm | 25mm |
| Max Aperture | — | f/1.8 | f/1.7 | f/2.8 | f/3.5 | f/1.7 |
| Mount | Sony E | Sony E | Fujifilm X | Canon RF | Micro Four Thirds | Fujifilm X |
| Stabilization | false | true | true | true | true | true |
| Weather Sealed | false | false | false | false | false | false |
| Weight (g) | 635 | 201 | 301 | 499 | 27 | 400 |
| AF Type | Autofocus | STM | STM | Autofocus | — | STM |
| Lens Type | — | — | — | Standard Zoom | Telephoto | — |
Common Questions
Q: Is the Sirui Astra kit good for YouTube videos?
Yes, if you want a premium, cinematic look for your channel. The autofocus helps if you're in front of the camera, but you'll need a tripod or gimbal since there's no lens stabilization.
Q: How does the Sirui anamorphic compare to using a滤镜 adapter?
The dedicated Sirui lenses are generally sharper and more integrated than using an anamorphic adapter on a regular lens, with fewer optical compromises and easier handling.
Q: Can I use these Sirui lenses for photography?
You can, but it's not ideal. You'll have to de-squeeze the images in post, and the autofocus isn't optimized for fast stills shooting. They're really designed for video.
Q: Do I need all three lenses, or should I start with one?
The kit offers great value per lens. Starting with just the 50mm is fine, but having the 75mm and 100mm gives you much more flexibility for interviews, details, and achieving different levels of background compression.
Who Should Skip This
Skip this kit if you primarily shoot still photography, need weather sealing for outdoor shoots, or require blisteringly fast and accurate autofocus for sports or wildlife. Also, if you shoot mostly handheld vlogs without a gimbal, the lack of stabilization will be a deal-breaker. In those cases, look at a stabilized zoom like the Tamron 28-75mm G2 or a set of fast AF primes from Sony or Sigma.
Verdict
So, should you buy the Sirui Astra 3-Cine Lens Kit? If you're a video-focused Sony shooter who's been dreaming of anamorphic footage and you work in controlled environments (or with a gimbal), this is a compelling and relatively affordable way in. The autofocus, while not perfect, lowers the barrier to entry significantly. But if you need rock-solid autofocus for unpredictable action, or if you shoot a lot of handheld without stabilization, this kit will frustrate you. It's a purpose-built tool for a specific cinematic look, and it executes that very well for the money.