Sirui Mars 1.33x Anamorphic Lens Collection for MFT
The Sirui 1.33x Anamorphic Lens Collection for MFT is a 24–75mm f/2.8 lens designed for Micro Four Thirds mount cameras. Check GearFocus for current availability, with buyer protection on every purchase.

Sirui Mars 1.33x Anamorphic Lens Collection for MFT
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Lens Overview — Sirui 1.33x Anamorphic Lens Collection for MFT
Key Features — Sirui 1.33x Anamorphic Lens Collection for MFT
1.33x Anamorphic Squeeze: Produces a widescreen cinematic image with oval bokeh and characteristic lens flares from a Micro Four Thirds sensor.
Four-Prime Collection: Covers 24mm, 35mm, 50mm, and 75mm focal lengths, providing a complete range for narrative, documentary, and run-and-gun shooting.
Matched f/2.8 Maximum Aperture: Consistent aperture across all four lenses ensures uniform exposure and depth of field when switching between focal lengths on set.
Unified 67mm Filter Thread: All four lenses share the same filter thread size, allowing a single set of filters or matte box to be used across the entire collection without adapters.
Manual Focus Design: Smooth, tactile manual focus ring on each lens enables precise, repeatable focus pulls suited to cinematic workflows.
Micro Four Thirds Mount: Native MFT mount integrates directly with compatible mirrorless bodies from Panasonic and Olympus/OM System without adapters.
Lens Specifications — Sirui 1.33x Anamorphic Lens Collection for MFT
| Spec | Detail |
|---|---|
| Use Cases | Studio, Video / Cinematography, Creative Effects, Macro |
| Lens Type | Anamorphic |
| Format | Micro Four Thirds (MFT) |
| Zoom/Prime | Prime |
| Focal Length | 24–75mm |
| Maximum Aperture | f/2.8 |
| Camera System | Mirrorless |
| Lens Mount | Micro Four Thirds |
| Autofocus | No |
| Focus Type | Manual |
| Image Stabilization | None |
| Filter Thread | 67mm |
Description — Sirui 1.33x Anamorphic Lens Collection for MFT
The Sirui Mars Anamorphic Lens Collection for Micro Four Thirds is a matched set of four anamorphic prime lenses covering 24mm, 35mm, 50mm, and 75mm focal lengths. Designed exclusively for the Micro Four Thirds mount and mirrorless camera systems, each lens delivers the characteristic look associated with anamorphic optics. All four lenses share a f/2.8 maximum aperture, providing consistent rendering and exposure behavior across the entire set.
Focus is manual on every lens, with no autofocus available, giving the shooter direct, deliberate control over focus — well suited to cinematic and video applications. A unified 67mm filter thread runs across all four lenses, simplifying accessory use whether you're working with ND filters, matte boxes, or other front-of-lens tools. The complete collection weighs in at 707g total. Image stabilization is not present in any of the lenses, so body-based stabilization should be considered when selecting a compatible camera.
With focal lengths spanning the standard range and anamorphic optics throughout, this set is built for MFT shooters who want a cohesive, matched prime lineup for cinematic work.
Pros — Sirui 1.33x Anamorphic Lens Collection for MFT
- ✓Four-lens prime set covering 24mm, 35mm, 50mm, and 75mm focal lengths for versatile shooting
- ✓Consistent f/2.8 maximum aperture across all lenses for predictable exposure and matching depth of field
- ✓Shared 67mm filter thread on every lens simplifies use of a single filter set or matte box
Cons — Sirui 1.33x Anamorphic Lens Collection for MFT
- ✗No autofocus — manual focus only, which may be limiting for fast-moving subjects
- ✗No image stabilization on any lens in the collection, requiring reliance on body-based stabilization
- ✗Maximum aperture of f/2.8 is moderate, limiting performance in very low light compared to faster primes
Reviews — Sirui 1.33x Anamorphic Lens Collection for MFT
Videos — Sirui 1.33x Anamorphic Lens Collection for MFT
Anamorphic Misconceptions - A Response to Potato Jet's Sirui Lenses Review — Anamorphic Cookbook





