Sirui 135mm T2.9 1.8x Full-Frame Anamorphic Lens (Canon RF-Mount)

Sirui 135mm T2.9 RF 1.8x anamorphic cinema lens

The Sirui 135mm T2.9 1.8x Full-Frame Anamorphic Lens (Canon RF-Mount) is a high-performance telephoto solution designed for extreme subject isolation and compressed perspectives. Engineers designed this lens with an impressive 1.8x squeeze ratio, delivering pronounced oval bokeh and cinematic widescreen imagery for Canon RF-mount digital sensors. It is an essential tool for filmmakers who demand the most aggressive anamorphic aesthetic in a modern professional package.

This 1.8x anamorphic cinema lens excels in creating dramatic background separation, offering a highly flattering compression for actors while delivering classic anamorphic flares and textures. The T2.9 maximum aperture ensures excellent light transmission and subject isolation, which is vital for high-end narrative storytelling and commercial production. With unified gear positions and a robust build, it allows professional production teams to maintain a high level of technical authority and creative control during every intensive take.

Sirui 135mm T2.9 RF Specifications

• Focal length: 135–135 mm equivalent coverage.
• Maximum aperture: T2.9 across the zoom range.
• Minimum focusing distance: 2.95 ft (0.9 m).
• 16 Elements in 13 Groups with aspherical optical elements construction.
• Aluminum alloy housing for outdoor shooting environments.
• Best Application: Dramatic Anamorphic Portraiture and Extreme Background Compression.
• Mount type: Canon RF compatible with full-frame mirrorless cameras.
• 3-Year Limited Warranty

RF Mount 135mm 1.8x Anamorphic

Tested in real production counts for high-end cinema projects, the Sirui 135mm provides exceptional anamorphic compression. Technical measurements confirm the 1.8x squeeze ratio delivers perfect cinematic widescreen geometry for full-frame sensors. Industry endorsement from top-tier directors of photography confirms its status as an authoritative tool for digital cinema production, meeting the highest standards for professional widescreen visual storytelling and aggressive telephoto capture.

Advanced 1.8x Squeeze Optical Construction

The technical definition using specialized aspherical glass elements reduces chromatic aberration and color fringing significantly. Improved resolution ensures high contrast such as razor-sharp edge-to-edge clarity throughout the widescreen frame. Professional cinematographers benefit from this construction when capturing intricate details in high-resolution video. This precise engineering ensures that digital sensors capture natural textures with absolute accuracy for professional grading, providing a distinct and aggressive cinematic visual signature.

T2.9 Professional Aperture Implementation

The T2.9 aperture behavior enables consistent exposure control in low-light environments without introducing noise. Aggressive oval bokeh quality creates stunning background separation for aesthetic widescreen shots. Narrative cinematographers such as commercial directors rely on this feature for creating a bold anamorphic look. This aperture is perfectly balanced to provide a soft background while keeping the main subject critically sharp, resolving fine details with professional clarity and extreme compressed texture.

Manual Follow-Focus Gear System

The manual focus system provides tactile and precise focusing for professional cinema use. Industry-standard 0.8 MOD gears improve speed and accuracy for professional workflows on busy sets. Focus pullers benefit especially in fast-action handheld scenarios where precision is critical. The smooth focus rotation provides ample space for fine-tuning focus during complex camera movements and tracking shots, ensuring every transition is perfectly timed for the professional narrative during production.

Durable Aluminum Cinema Chassis

The lens weighs 2.9 lb (1300 g) with a barrel length of 6.8 in (173 mm). The rugged metal design adds durability for demanding production environments and extreme weather. Equipment managers value this when maintaining fleet longevity. Its standardized 82mm filter thread allows for quick filter changes without changing adapter rings, making it an efficient choice for small crews and fast-paced commercial production environments for mobile and studio digital filming projects.

Canon RF Mount Compatibility Adaptability

The Canon RF mount attaches to professional mirrorless and full-frame cinema cameras. Professional adapter compatibility enables secure camera mounting and optical alignment for high-end rigs. Production houses often use adapters for B-cam setups on diverse projects. This robust mount ensures that the lens remains perfectly centered and stable, even when using heavy lens support systems and high-torque wireless focus motors during dynamic and high-stakes capture.

Professional 1.8x Anamorphic Deployment

The 135mm capability supports extreme telephoto tasks for professional directors of photography and cinematographers. Constant 1.8x squeeze reduces spatial distortion in tight work settings and interior locations. Commercial cinematography thrives with this optical setup because it delivers extreme compressed perspectives. This deployment is ideal for character-driven narratives, fashion cinematography, and any production requiring the boldest anamorphic compression and professional bokeh effects for a modern look.

Sirui 135mm RF Maintenance Protocol

Correct cleaning with air blowers prevents dust scratches on large front glass and multi-coatings. Hard-shell case storage keeps optics calibrated and protected from vibration during travel. Pro Tip: Store with gears facing upward to prevent compression flat-spots for long-term reliability and smoothness. Includes a 3-year limited warranty for professional peace of mind, ensuring that the mechanical gears perform reliably over many professional production cycles.