Sirui Astra Series T1.8 1.33x 75mm Full-Frame Anamorphic Review

The Sirui Astra 75mm T1.8 brings Hollywood's widescreen anamorphic look to filmmakers on a budget, but its specialized design means it's not for everyone.

Focal Length 75mm
Mount Nikon Z
Stabilization No
Weather Sealed No
Weight 680 g
AF Type Autofocus
Sirui Astra Series T1.8 1.33x 75mm Full-Frame Anamorphic lens
47.5 Totaalscore

The 30-Second Version

The Sirui Astra 75mm T1.8 is a sharp, affordable gateway into full-frame anamorphic cinematography. Its 1.33x squeeze gives you a true 2.4:1 widescreen look without cropping. At $849, it's a steal for the specific cinematic look, but be ready to work around its lack of stabilization and average autofocus. Buy it if you want that movie magic on a budget; look elsewhere if you need an all-purpose lens.

Overview

The Sirui Astra 75mm T1.8 is a very specific tool for a very specific job. It's not your everyday lens. This is a full-frame anamorphic prime, designed to give your video that classic cinematic widescreen look without needing to crop your sensor. If you're a filmmaker, YouTuber, or content creator chasing that 'movie magic' aesthetic on a budget, this lens is squarely in your crosshairs.

What makes it interesting is the combination of features at this price. You get autofocus, a T1.8 aperture for low-light work and shallow depth of field, and a 1.33x squeeze factor that delivers a 2.4:1 aspect ratio. For under $850, that's a package that used to cost thousands. It's Sirui saying you don't need a Hollywood budget to play with Hollywood tools.

Just know what you're signing up for. This is a 75mm prime, so it's a short telephoto. On a full-frame camera, that's a fairly tight field of view, great for portraits, interviews, or detail shots. It's not a walk-around lens. It's heavy, at 680 grams, and it lacks any image stabilization. This is a lens you plan your shots with, not one you throw on for a casual day out.

Performance

Our database shows this lens scores in the 95th percentile for optical performance. That's exceptionally high. In plain terms, it's sharp, with minimal distortion and good color rendering. The 44mm image circle ensures you get clean coverage across a full-frame sensor without nasty vignetting. The trade-off? The bokeh quality lands in a more average 60th percentile. The anamorphic design creates oval bokeh balls and stretches backgrounds vertically, which is part of the 'look,' but purists might find it less creamy than a spherical lens.

The autofocus performance sits in the 45th percentile. It's functional, especially for video where you might use manual focus pulls anyway, but don't expect lightning-fast, silent phase-detect performance. It'll get the job done for controlled shots, but it's not built for tracking fast action. The minimum focus distance of 2 feet (600mm) is decent, but its macro score is low at the 44th percentile, so don't expect extreme close-up capabilities.

Performance Percentiles

AF 46.4
Bokeh 60.9
Build 55.1
Macro 53.4
Optical 94
Aperture 29.7
Versatility 37.5
Stabilization 37.9

Pros & Cons

Pros

  • Exceptional optical sharpness (95th percentile) delivers clean, cinematic images edge-to-edge. 94th
  • The T1.8 aperture provides great low-light performance and very shallow depth of field for the price.
  • Autofocus is a rare and useful feature on a budget anamorphic lens, even if it's not class-leading.
  • The 1.33x squeeze gives a true 2.4:1 widescreen aspect ratio without cropping your sensor's resolution.
  • Build quality is solid for the price (54th percentile), and the 680g weight gives it a substantial feel.

Cons

  • No image stabilization (36th percentile) means you'll need a gimbal or tripod for smooth handheld video. 30th
  • Autofocus performance is merely average (45th percentile) and can hunt in low light.
  • The 75mm focal length is quite tight, limiting its versatility (38th percentile) for wider shots.
  • Bokeh quality is just okay (60th percentile); the anamorphic oval bokeh isn't for everyone.
  • Maximum aperture is only T1.8, which is good but not exceptional (29th percentile) compared to some spherical F1.4 lenses.

Specifications

Full Specifications

Optics

Focal Length Min 75
Focal Length Max 75
Elements 18
Groups 13

Aperture

Diaphragm Blades 13

Build

Mount Nikon Z
Format Full-Frame (44 mm Image Circle)
Weight 0.7 kg / 1.5 lbs
Filter Thread 67

AF & Stabilization

AF Type Autofocus
Stabilization No

Focus

Min Focus Distance 600

Value & Pricing

At $849, the Sirui Astra 75mm sits in a fascinating spot. For a full-frame anamorphic lens with autofocus, it's practically a bargain. You're getting a specialized cinematic tool for less than the price of many high-end spherical photo lenses. The value is entirely in the unique anamorphic look it provides.

However, value depends on your needs. If you don't need or want the anamorphic look, this lens is a poor value. For the same money, you could get a fantastic spherical prime that's faster, sharper, and more versatile. But if the stretched flares and widescreen aspect ratio are what you're after, there's almost nothing else that touches it at this price point without major compromises.

US$ 849

vs Competition

The most direct competitor is the Meike 55mm F1.8, another budget full-frame cine lens. The Meike is spherical, not anamorphic, so you lose the widescreen squeeze and oval bokeh, but you gain a slightly wider focal length and potentially faster, more reliable autofocus. It's a choice between a specialized cinematic tool (Sirui) and a more general-purpose, fast prime (Meike).

Compared to photo-centric lenses like the Nikon NIKKOR Z 35mm f/1.8 S, the Sirui is in a different league entirely. The Nikon will have vastly superior autofocus, image stabilization, and likely better optical correction, but it won't give you the anamorphic look. They're built for different jobs. The Viltrox lenses mentioned are for APS-C cameras, so they're not competing for the same full-frame sensor space. The real trade-off is between the unique Sirui aesthetic and the all-around better performance of a traditional photo lens.

Spec Sirui Astra Series T1.8 1.33x 75mm Full-Frame Anamorphic Meike Meike 55mm F1.4 Standard Aperture APS-C Frame AF Viltrox Air VILTROX 35mm F1.7 f/1.7 Air AF Lens for Fuji X Tamron Di III Tamron 17-70mm f/2.8 Di III-A VC RXD Lens for Sony 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 75mm 55mm 35mm 17-70mm 24mm -
Max Aperture - f/1.4 f/1.7 f/2.8 f/1.8 f/1.4
Mount Nikon Z Nikon Z Fujifilm X Sony E-Mount, Sony E-Mount, Sony E-Mount, Sony E-Mount, Sony E-M Canon RF Fujifilm X
Stabilization false true true true true true
Weather Sealed false false false false false true
Weight (g) 680 281 400 544 272 320
AF Type Autofocus STM STM Autofocus Autofocus STM
Lens Type - - - Wide-Angle Zoom Wide-Angle -
Compare Compare Compare Compare Compare
Product AfBokehBuildMacroOpticalApertureVersatilityStabilization
Sirui Astra Series T1.8 1.33x 75mm Full-Frame Anamorphic 46.460.955.153.49429.737.537.9
Meike 55mm F1.4 Standard Aperture APS-C Frame AF STM Compare 95.681.881.189.167.588.137.587.8
Viltrox Air 35mm F1.7 f/1.7 AF Compare 95.673.663.493.27480.537.587.8
Tamron Di III 17-70mm f/2.8 -A VC RXD Compare 46.459.264.377.490.854.692.587.8
Canon RF 24mm f/1.8 Macro IS STM Compare 46.481.887.68182.575.837.599.9
Fujifilm VILTROX 56mm F1.4 STM APS-C Frame Auto Focus Standard Prime Compare 95.681.888.885.334.688.137.587.8

Common Questions

Q: Do I need a special camera or settings to use this anamorphic lens?

You need a camera that can desqueeze the image, either in-camera (like many Panasonic, Blackmagic, or Sony video cameras) or in post-production software. You'll also be shooting in a 4:3 or similar aspect ratio on your sensor to capture the full squeezed image, which then gets stretched to 2.4:1. It's an extra step compared to a normal lens.

Q: How does the 75mm focal length work for anamorphic? Is it too tight?

A 75mm anamorphic acts like a 75mm lens horizontally, but it's wider vertically due to the squeeze. The final field of view feels unique. It's a short telephoto, perfect for close-ups, interviews, and detail shots. It's not ideal for establishing wide shots; you'd want a wider anamorphic lens (like a 35mm or 50mm) for that.

Q: Can I use this lens for photography?

Technically yes, but it's not ideal. You'll have to desqueeze the images in post, and the oval bokeh and stretched flares are a very specific aesthetic. For photography, a dedicated spherical prime lens at this price will give you better autofocus, sharper corners, and more natural-looking results without the extra workflow.

Q: How bad is the lack of image stabilization?

It's significant for handheld video. Anamorphic lenses magnify camera shake, making it more noticeable. For static shots on a tripod or smooth movements on a gimbal, it's fine. For any kind of handheld work, you'll see the shake. A camera with in-body stabilization helps, but a gimbal is highly recommended.

Who Should Skip This

Travel and street photographers should avoid this lens entirely. Its weight (680g), lack of stabilization, tight focal length, and specialized anamorphic workflow are the opposite of what you need for casual, spontaneous shooting. Its travel score of 31.4/100 says it all. Similarly, if you're primarily a stills photographer who occasionally shoots video, this lens will frustrate you. The extra post-processing step and niche look aren't worth the hassle. Instead, look at a standard zoom or a fast prime like a 35mm or 50mm F1.8 from your camera's manufacturer. They'll be lighter, faster to focus, and far more versatile for mixed use.

Verdict

For indie filmmakers, music video creators, and serious YouTubers who want to elevate their production value with a genuine cinematic look, the Sirui Astra 75mm is an easy recommendation. The optical quality is top-notch, and the price for a full-frame anamorphic is hard to beat. Pair it with a stabilized camera or a gimbal, and you've got a powerful combo.

But if you're a hybrid shooter who needs one lens to do both photos and video, or if you prioritize fast, silent autofocus and image stabilization for run-and-gun work, you should skip this. Look at the excellent spherical primes from Sigma, Nikon, or Sony instead. This lens is a specialist, and it's brilliant at its one job.