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Sirui 50mm f/1.8 1.33x Anamorphic Lens

The Sirui 50mm f/1.8 1.33x is a 50mm f/1.8 lens designed for Sony E, Micro Four Thirds, Canon EF-M, Nikon Z, Fujifilm X mount cameras. Check GearFocus for current availability, with buyer protection on every purchase.

Sirui 50mm f/1.8 1.33x Anamorphic Lens

Sirui 50mm f/1.8 1.33x Anamorphic Lens

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Lens Overview — Sirui 50mm f/1.8 1.33x

The Sirui 50mm f/1.8 Anamorphic is a prime lens built for mirrorless APS-C camera systems, offering a wide maximum aperture of f/1.8 and manual focus operation. Designed specifically for the APS-C format, it is available across a broad range of mirrorless mounts including Sony E, Micro Four Thirds, Canon EF-M, Nikon Z, and Fujifilm X, making it accessible to a wide variety of shooters working across different camera ecosystems. As an anamorphic prime, it sits in the standard focal length range at 50mm, giving shooters a familiar field of view on their chosen system.

The lens weighs 560g and accepts 67mm front filters, which opens the door to using standard screw-in filter accessories. Focus is entirely manual, which is typical for anamorphic lenses where precise focus pulling is often preferred for cinematic work. There is no image stabilization on board, so steady shooting will depend on either the camera body's stabilization system or a support rig.

For filmmakers and hybrid shooters interested in the distinctive anamorphic look on a mirrorless APS-C body, this Sirui lens provides a multi-mount option at a relatively accessible entry point.

Key Features — Sirui 50mm f/1.8 1.33x

1.33x Anamorphic Squeeze: Produces the characteristic widescreen cinematic image with natural lens flares and oval bokeh when de-squeezed in post.

f/1.8 Maximum Aperture: Wide aperture allows shooting in lower light and provides shallow depth of field for cinematic subject separation.

APS-C Format Coverage: Designed specifically for APS-C mirrorless sensors, delivering a standard field of view equivalent on crop-body cameras.

Five Mount Options: Available in Sony E, Micro Four Thirds, Canon EF-M, Nikon Z, and Fujifilm X mounts to suit a wide range of mirrorless systems.

Manual Focus Design: Smooth manual focus ring built for deliberate, repeatable focus pulls suited to cinematic and video workflows.

67mm Filter Thread: Standard front filter thread allows use of widely available screw-in filters including NDs and polarizers.

Lens Specifications — Sirui 50mm f/1.8 1.33x

Sirui 50mm f/1.8 1.33x full specifications
SpecDetail
Use CasesVideo / Cinematography, Creative Effects
Lens TypeAnamorphic
FormatAPS-C
Zoom/PrimePrime
Focal Length50mm
Maximum Aperturef/1.8
Camera SystemMirrorless
Lens MountSony E, Micro Four Thirds, Canon EF-M, Nikon Z, Fujifilm X
AutofocusNo
Focus TypeManual
Image StabilizationNone
Filter Thread67mm

Description — Sirui 50mm f/1.8 1.33x

The Sirui 50mm f/1.8 Anamorphic is a manual focus prime lens built for APS-C mirrorless camera systems. With a maximum aperture of f/1.8, it offers solid light-gathering capability for both photo and video work. Sitting in the standard focal length range at 50mm, it provides a natural field of view on APS-C bodies.

The lens is offered across five mount options — Sony E, Micro Four Thirds, Canon EF-M, Nikon Z, and Fujifilm X — giving it unusually wide ecosystem reach for an anamorphic prime. A 67mm filter thread means standard filter accessories are straightforward to use. The lens weighs 560g and has no image stabilization, so camera support or in-body stabilization will be an important consideration.

As an anamorphic type lens in the mirrorless category, it is aimed at filmmakers and hybrid shooters looking to bring a cinematic anamorphic aesthetic to their APS-C setup without requiring a cinema-specific camera system.

Pros — Sirui 50mm f/1.8 1.33x

  • ✓Wide maximum aperture of f/1.8 allows shooting in lower light conditions
  • ✓Broad mount compatibility covers Sony E, Micro Four Thirds, Canon EF-M, Nikon Z, and Fujifilm X systems
  • ✓Standard 50mm focal length on APS-C format provides a familiar field of view

Cons — Sirui 50mm f/1.8 1.33x

  • ✗Manual focus only — no autofocus support, which may slow down shooting in fast-moving situations
  • ✗No image stabilization, requiring reliance on in-body stabilization or external support
  • ✗APS-C format coverage limits compatibility to crop-sensor bodies only

Videos — Sirui 50mm f/1.8 1.33x

Sirui 50mm f/1.8 1.33x - Anamorphic Lens Review - Make Cinematic Videos — Anamorphic Cookbook

Resources & Downloads — Sirui 50mm f/1.8 1.33x

Manuals & Guides

Frequently Asked Questions — Sirui 50mm f/1.8 1.33x

Which camera mounts is this lens available in?+
The Sirui 50mm f/1.8 Anamorphic is available in Sony E, Micro Four Thirds, Canon EF-M, Nikon Z, and Fujifilm X mounts. All versions are designed for APS-C format mirrorless cameras.
Does this lens have autofocus?+
No, this lens is manual focus only. There is no autofocus mechanism, so focus must be set manually by the photographer or camera operator.
What filter size does this lens accept?+
The Sirui 50mm f/1.8 Anamorphic has a 67mm filter thread, allowing the use of standard 67mm screw-in filters.
Does the lens include image stabilization?+
No, the lens has no built-in image stabilization. Users who need stabilization will need to rely on their camera body's in-body stabilization system, if available, or use an external support solution.
Is this lens suitable for full-frame mirrorless cameras?+
The lens is designed for APS-C format coverage. While it may physically mount on full-frame mirrorless bodies using the appropriate mount version, its image circle is optimized for APS-C sensors.
How heavy is this lens?+
The Sirui 50mm f/1.8 Anamorphic weighs 560g, which should be considered when pairing it with lighter or more compact mirrorless bodies.

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