Sirui 50mm T2.9 1.6x Full-Frame Anamorphic Lens
The Sirui 50mm T2.9 1.6x is a 50mm f/2.9 lens designed for Sony E, Canon RF, Nikon Z, L-Mount mount cameras. Used copies start from $449.82 on GearFocus, with buyer protection on every purchase.
Sirui 50mm T2.9 1.6x Full-Frame Anamorphic Lens
Used Sirui 50mm T2.9 1.6x Listings on GearFocus
Lens Overview — Sirui 50mm T2.9 1.6x
Key Features — Sirui 50mm T2.9 1.6x
1.6x Anamorphic Squeeze: Produces a wider cinematic aspect ratio from a full-frame sensor, along with characteristic horizontal lens flares and oval bokeh associated with the anamorphic look.
Full-Frame Coverage: Image circle covers full-frame sensors fully, so there is no crop factor penalty on compatible mirrorless bodies.
T2.9 Maximum Aperture: Transmits a usable amount of light for cinematic work in mixed or low-light environments without relying on extreme ISO settings.
50mm Standard Focal Length: Offers a natural field of view as a starting point, with the anamorphic squeeze effectively widening the captured image in post.
Four Mount Options: Available in Sony E, Canon RF, Nikon Z, and L-Mount, covering the most widely used full-frame mirrorless camera systems.
Manual Focus Only: Designed for deliberate, controlled focus pulls suited to narrative filmmaking and scripted video production.
Lens Specifications — Sirui 50mm T2.9 1.6x
| Spec | Detail |
|---|---|
| Use Cases | Video / Cinematography, Creative Effects |
| Lens Type | Anamorphic |
| Format | Full Frame |
| Zoom/Prime | Prime |
| Focal Length | 50mm |
| Maximum Aperture | f/2.9 |
| Camera System | Mirrorless |
| Lens Mount | Sony E, Canon RF, Nikon Z, L-Mount |
| Autofocus | No |
| Focus Type | Manual Focus |
| Image Stabilization | None |
| Filter Thread | 82mm |
Description — Sirui 50mm T2.9 1.6x
The Sirui 50mm T2.9 is a manual focus, full-frame anamorphic prime lens engineered for mirrorless camera systems. It's available in Sony E, Canon RF, Nikon Z, and L-Mount configurations, making it one of the more broadly compatible anamorphic options in its class. The T2.9 maximum aperture delivers capable performance in lower light conditions, while the 50mm focal length provides a standard field of view as the optical foundation.
With no image stabilization on board, shooters working handheld should plan their rig accordingly. The 82mm front filter thread is generously sized, accommodating a broad selection of cinema-grade and photographic filters. At 1050g, this is a lens that carries some heft — a natural trade-off for full-frame anamorphic optical construction.
Designed for the mirrorless camera system, it pairs with today's leading full-frame mirrorless platforms without requiring an adapter on supported mounts. For filmmakers and hybrid creators committed to a manual, deliberate shooting approach, this lens offers anamorphic capability across the most widely used mirrorless ecosystems.
Pros — Sirui 50mm T2.9 1.6x
- ✓T2.9 maximum aperture provides meaningful light-gathering for low-light cinematic work
- ✓Full-frame coverage (lensFormat: Full Frame) ensures no crop on compatible mirrorless bodies
- ✓Broad mount compatibility — available in Sony E, Canon RF, Nikon Z, and L-Mount
Cons — Sirui 50mm T2.9 1.6x
- ✗Manual focus only — no autofocus support, which may limit run-and-gun or fast-paced shooting scenarios
- ✗At 1050g, the lens is relatively heavy and may require additional rigging support for comfortable handheld use
- ✗No image stabilization (imageStabilization: None), placing the full stabilization burden on the camera body or rig
Reviews — Sirui 50mm T2.9 1.6x
Videos — Sirui 50mm T2.9 1.6x
This FULL FRAME Anamorphic Lens ROCKS! — DSLR Video Shooter
Frequently Asked Questions — Sirui 50mm T2.9 1.6x
Which camera mounts is this lens available in?+
The Sirui 50mm T2.9 anamorphic lens is available in four mount options: Sony E, Canon RF, Nikon Z, and L-Mount. This covers the majority of current full-frame mirrorless camera systems, so most shooters will find a compatible version.
Does this lens support autofocus?+
No — this lens is manual focus only. There is no autofocus mechanism, which is a common characteristic of cinema-oriented anamorphic lenses and suits workflows where focus pulling is handled deliberately or by a dedicated operator.
What filter size does this lens use?+
The Sirui 50mm T2.9 uses an 82mm filter thread. This is a large diameter common among fast or complex optical designs, and you'll want to ensure your filter accessories are sized accordingly.
How heavy is this lens, and does that affect how I should rig it?+
The lens weighs 1050g, which is substantial for a prime. For handheld shooting, especially given the absence of image stabilization, most users will benefit from a shoulder rig, gimbal, or other support system to manage the weight and reduce camera shake.
Is this lens suitable for full-frame cameras, or does it require a crop sensor?+
This lens is specifically designed for full-frame coverage (lensFormat: Full Frame), so it is intended for use on full-frame mirrorless bodies. It will also physically mount on APS-C or other crop-sensor mirrorless cameras using the supported mounts, though the full-frame design means no vignetting concerns on larger sensors.