Sigma

Sigma 50mm T1.5 FF Cine Prime Lens Canon EF

Sigma 50mm T1.5 full-frame cine prime lens with Canon EF mount for professional cinema and filmmaking applications.

$4,949.00*
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*Price sourced from Amazon.com. Last updated:Jul 14, 2026.Price and availability are subject to change.

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Overview

The Sigma 50mm T1.5 FF Cine Prime Lens is a purpose-built cinema lens designed for professional filmmakers and cinematographers working with Canon EF-mount cameras. Unlike photography lenses adapted for video use, this lens is engineered from the ground up for motion picture production. It features a fully de-clicked aperture ring that allows seamless, stepless iris adjustments during recording, a long-throw focus ring calibrated in feet for precise manual focus pulls, and a T-stop rating of 1.5 that accounts for actual light transmission rather than theoretical values. These features are essential for maintaining consistent exposure and focus across shots in professional productions.

Optically, the Sigma 50mm T1.5 benefits from Sigma's expertise in high-performance lens design, delivering sharp imagery with minimal aberrations and attractive rendering characteristics that suit cinematic storytelling. The full-frame image circle covers large-format cinema sensors as well as standard Super 35 formats, providing flexibility across different camera systems. The Canon EF mount makes it directly compatible with Canon cinema cameras like the C300 and C500 series, Canon DSLRs, and mirrorless bodies via EF-to-RF adapters. The robust, all-metal construction withstands the demands of professional set environments, and the standardized front diameter aligns with industry-standard matte boxes and follow focus systems for seamless integration into existing camera rig configurations.

Key Features

SUPERIOR OPTICAL PERFORMANCE - Achieve stunning clarity and sharpness with this 50mm lens, designed for full-frame sensors and offering exceptional image quality across the entire frame.

CAPTURE EXCEPTIONAL LOW-LIGHT SHOTS - The ultra-fast T1.5 aperture allows for incredible performance in challenging lighting conditions, providing beautiful bokeh and shallow depth of field control.

CINEMATIC PRECISION AND CONTROL - Features precise manual focus and iris control with industry-standard 0.8 MOD gears, ensuring seamless integration with professional cinema rigs and accessories.

DURABLE AND ROBUST BUILD QUALITY - Constructed with high-quality materials, this lens is built to withstand the rigors of professional filmmaking, ensuring reliability and longevity on set.

VERSATILE COMPATIBILITY - Designed for Canon EF mount cameras, this lens offers broad compatibility and electronic communication, providing seamless integration with your existing equipment.

ENHANCED FOCUS CONTROL - Benefit from smooth and precise focusing with a 180-degree focus rotation, allowing for accurate and repeatable focus pulls, essential for professional cinematography.

No further features available.

No further features available.

No further features available.

Specifications

Brand
Sigma
Model
T1.5 FF Cine
Focal Length
50mm
Maximum Aperture
T1.5
Lens Type
Cine Prime
Mount
Canon EF
Coverage
Full Frame
Focus Scale
Feet

Pros & Cons

👍 Pros

  • T1.5 maximum aperture provides excellent light transmission for shooting in low-light conditions and achieving shallow depth of field.
  • Cine-specific features including de-clicked aperture and long focus throw enable smooth, professional iris and focus pulls.
  • Full-frame coverage ensures compatibility with large-format cinema cameras and full-frame sensor bodies.
  • Sigma's optical quality delivers sharp, high-contrast images with pleasing rendering suited to cinematic work.
  • Canon EF mount offers broad compatibility across Canon cinema cameras, DSLRs, and adapted mirrorless systems.

👎 Cons

  • Manual focus only, with no electronic autofocus capability, which is standard for cine lenses but limits versatility.
  • Focus scale is marked only in feet, which may be inconvenient for operators accustomed to metric measurements.
  • Canon EF mount version cannot be natively used on PL-mount cinema cameras without a mount swap or adapter.
  • Premium cine lens pricing is significantly higher than equivalent photography lenses with similar focal lengths and apertures.

Frequently Asked Questions

T-stop measures the actual amount of light transmitted through the lens, accounting for light lost within the optical elements. This is more accurate than F-stop for filmmaking because it ensures consistent exposure when switching between different lenses in a matched cine lens set.
This lens has a Canon EF mount, which is designed for Canon EF-mount cinema cameras and DSLRs. It can be adapted to Canon RF-mount mirrorless bodies with an EF-to-RF adapter, though native EF-mount cameras and cinema rigs are the intended use.
Cine prime lenses feature de-clicked aperture rings for smooth iris pulls, standardized front diameters for matte box compatibility, focus scales marked in feet, longer focus throw for precise manual focusing, and T-stop markings instead of F-stops. These features are essential for professional video production workflows.
No. Cine prime lenses are designed for manual focus operation, which is standard in professional filmmaking. The long focus throw allows precise, repeatable focus pulls by a camera operator or focus puller.
While it physically mounts to Canon EF cameras, the manual-only focus, de-clicked aperture, and cine-specific markings make it impractical for most still photography work. It is purpose-built for motion picture production.