SIRUI 35mm F1.8 1.33X S35 Anamorphic Lens - Compact Cinema Optic

In this review the SIRUI 35mm F1.8 1.33X S35 Anamorphic Lens is presented as a compact, mechanically robust cinema optic aimed at filmmakers who want an authentic widescreen anamorphic look without heavy, expensive glass. The biggest reason to buy is its 1.33x squeeze that widens horizontal field of view by about 33%, producing a true 2.4:1 cinematic frame straight out of the camera while remaining portable and well built for run-and-gun shoots.

Key Features

• Compact construction: Aircraft aluminum housing and precision copper focus components make the lens durable yet light enough for handheld and gimbal work.
• Wider cinematic field of view: The 1.33x squeeze factor widens horizontal FOV up to 33% to deliver a full HD 2.4:1 frame without post-cropping.
• Fast aperture control: An aperture range from F1.8 to F16 adapts both exposure and the lens character, altering streaks and star bursts for cinematic highlights.
• High quality glass: German-made Schott optical glass elements and an innovative optical structure keep images sharp and control chromatic dispersion.
• Precise manual operation: Manual focus with a long 191.2 degree rotation and two 0.8 module gear rings allow accurate pulling and follow focus compatibility.
• Optimized for S35 frame: The lens is specified for S35 support, producing the intended wide look on small cinema sensors.

Who It's For

This lens suits indie filmmakers, content creators and DOPs who need the anamorphic widescreen aesthetic without the bulk and price of traditional cinema anamorphics. Its portability and metal construction make it a good match for gimbals, small rigs and location shoots where weight and durability matter.

Those who should look elsewhere include shooters who require autofocus, extreme close macro capability, or full-frame coverage; this model is specified for S35 and manual operation, so photographers and full-frame cinematographers with different format needs may prefer a different optic.

Pros & Cons

Pros

• Well built with aircraft aluminum and precision copper parts for reliable field use.
• Produces a true widescreen 2.4:1 image using a 1.33x squeeze with minimal need for post-cropping.
• Schott glass and an optimized optical layout deliver sharp images with controlled chromatic dispersion.
• Good value for the anamorphic look according to user feedback that praises image quality and low vignetting.

Cons

• Manual focus only, so users who need autofocus or electronic control will find it limiting.
• Designed for S35 support, so full-frame shooters will get different coverage and may need alternate lenses.

Specifications

Focal Length	35mm
Mount	L Mount
Aperture	F1.8 - F16
Support Frame	S35
Elements / Groups	13 elements in 9 groups
Filter Thread	M67 x 0.75
Total Length / Weight	116.5mm / 700g

Our Verdict

The SIRUI 35mm F1.8 1.33X S35 Anamorphic Lens is a smart choice for filmmakers seeking an authentic anamorphic look in a compact, well engineered package. It delivers widescreen framing and unique streaking characteristics straight from the camera, with reliable mechanics and quality glass that represent strong value for independent productions and run-and-gun workflows.

Frequently Asked Questions

Does this lens produce a widescreen 2.4:1 image out of camera?
Yes, the 1.33x squeeze widens the horizontal field of view so you can achieve a 2.4:1 cinematic frame without post-cropping on S35 sensors.

Is the focus and aperture control usable with follow focus systems?
The lens has a 191.2 degree focus rotation and two 0.8 module gear rings, making it compatible with standard follow focus setups for precise manual pulls.

Will this lens cause heavy vignetting or chromatic aberration?
Users report crisp images with minimal to zero vignetting and the design including Schott glass helps control chromatic dispersion, though results depend on the camera and sensor used.