Sigma 20mm T1.5 FF High-Speed Prime Lens for EF Mount, Feet

SKU: SG20T15CA MFR: 412966
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Key Features

  • Capture stunning visuals with this Sigma 20mm prime lens, perfect for filmmakers.
  • Achieve beautiful bokeh with the wide T1.5 aperture, ideal for cinematic shots.
  • Enjoy precise manual focus with a smooth 180° rotation for critical focus pulls.
  • Durable metal build ensures reliability, making this 20mm lens a solid investment.
  • Get creative with the 9-blade iris, producing smooth and circular out-of-focus highlights.
  • Designed for Canon EF mount, this high-speed lens delivers exceptional image quality.
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Special Order?Estimated to Ship: 09/09/2025
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Sigma T1.5 Cine Specifications

  • Mount

    Canon EF

  • Focal Length

    20mm

  • Aperture

    T1.5 to T16

  • Close Focus Distance

    11" (0.276m)

  • Horizontal Field of View (degree)

    Full Frame: 84.0 deg.
    Super35: 63.2 deg.
    APS-C: 61.3 deg.

  • Image Circle

    Full Frame: 43.3mm

  • Focus Rotation

    180 deg.

  • Gear Pitch

    0.8 module

  • Iris Blades

    9

  • Front Lens Diameter

    95mm

  • Material of Construction

    Metal, glass

  • Length

    4.6" (11.68cm)

  • Weight

    2.9 lbs (1.32kg)

  • UPC Code

    085126412661

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7 Accessories for Sigma 20mm T1.5 FF High-Speed Prime Lens for EF Mount, Feet

  • All Accessories (7)
  • Bags & Cases (3)
  • Cleaning Accessories (2)
  • Cap Leash (1)
  • Follow Focus & Lens Support (1)

About Sigma T1.5 Cine

Discover the exceptional performance of the 20mm T1.5 FF High-Speed Prime Lens for EF Mount, a groundbreaking product from SIGMA CORPORATION. This lens is a testament to Sigma's innovative entry into the cinema lens market, designed specifically to meet the growing demands of digital film production.

The lens is part of Sigma's FF High-Speed Prime Line, a range of lenses from 20mm to 85mm, all with a fast maximum aperture of T1.5. These lenses are designed to be compatible with full-frame sensors and offer superior resolution, even outperforming other high-end prime sets. The 20mm T1.5 FF High-Speed Prime Lens is perfect for capturing expansive landscapes, cityscapes, and group shots, thanks to its wide-angle focal length.

This lens is designed to bring consistency to your production, eliminating the need to adjust lighting for different shots. It ensures a consistent level of light and maintains the film's look and color/contrast before it enters post-production. It features a 180-degree focus throw and resolution matching up to 8K, making it ideal for high-resolution digital cinema cameras.

The lens is weatherproof and features luminous paint markings for easy operation in low-light conditions. It boasts a long focus rotation of 180 degrees, guided by cams for smooth operation and accuracy. The lens design includes standardized essentials such as a 95mm front diameter for matte box use and standard gear positions for accessories like follow focus.

The 20mm T1.5 FF High-Speed Prime Lens is manufactured and inspected in Sigma's factory in Aizu, Japan. It undergoes a rigorous lens performance evaluation using Sigma's proprietary A1 Modulation Transfer Function (MTF) measuring system, ensuring that each lens meets all specifications before shipping.

The lens minimizes flare and ghosting, enhancing contrast in backlit conditions. It also offers sharpness combined with an outstanding bokeh effect. All lenses in the lineup comply with Sigma's CCI standard, ensuring standardized color balance and making color correction easier.

This lens is not only high-performing but also lightweight and compact, thanks to Sigma's high-precision, high-efficiency mass production technologies. It features a dust-proof and splash-proof construction, making it ready for use in tough conditions. The lens also features luminous paint for enhanced visibility in the dark and laser engraving for long-term use.

Sigma's 20mm T1.5 FF High-Speed Prime Lens is a versatile, reliable, and durable choice for professional photographers and cinematographers. It offers high-quality imaging, innovative design, and superior build quality, making it an invaluable asset for any camera kit.

Sigma T1.5 Cine Features

  • 100% metal body: The body is made completely of metal to stand up to tough professional use over the long term
  • 95mm front diameter: The front diameter is 95mm, similar to that of other cine lenses and compatible with matte boxes. Compared to lenses in the same class, SIGMA's cine lenses are more lightweight and compact
  • Standardized gear positions: The positions of the gears in each ring are standardized, eliminating the need to adjust the follow focus, motor unit, or accessories even when the lens changes
  • 0.8M gear pitch: Each lens has a 0.8M gear pitch, which is the standard for cine lenses, ensuring compatibility with existing accessories
  • Silent ring stoppers: The stopper of each ring incorporates a damper made of a special resin, resulting in silent operation. While offering a satisfying lock feel, this feature eliminates any metallic sounds, allowing the user to shoot with confidence in a quiet area
  • 180 Degree focus rotational angle: At 180 Degree, the rotational angle of the focus ring is more than double that of a still camera lens, making possible extremely high-precision focusing. SIGMA has also optimized the cam for cine lenses for even easier long distance focusing
  • Iris with full manual control: Featuring manual control capability, the iris ring offers smooth control without clicks. The T-stop display, which is standard in cine lenses, contributes to high-precision exposures. Just like a high-end cine lens, the rotational angle of the iris ring is 60 Degree
  • Linear iris ring: The linear iris ring gives users the same rotational angle per T-stop for direct, intuitive control
  • Selectable focus ring with feet or meter graduations: Based on user needs, a focus ring with either feet or meter graduations may be selected. For a small charge, SIGMA can also convert the ring from one type to the other after purchase
  • Mount with electronic contacts: The mount with electronic contacts allows the lens to communicate important information to the body (focal length, shooting distance, aperture etc.)
  • Enhanced EF mount: The hole for the stopper pin has been strengthened with a separate part to minimize loosening over time and enhance long-term use
  • Dedicated lens support foot: The provided lens support foot helps minimize load on the camera body while enhancing mount stability. The height of the seating surface is designed for compatibility with other accessories. Even though the lens is compact, its robust design offers two different screw holes for this accessory to increase user options
  • Cine-style front lens cap: All lenses come complete with a conventional cine-style front lens cap

Warranty Information

This product has a limited warranty of 12 months.

Key Features

  • Capture stunning visuals with this Sigma 20mm prime lens, perfect for filmmakers.
  • Achieve beautiful bokeh with the wide T1.5 aperture, ideal for cinematic shots.
  • Enjoy precise manual focus with a smooth 180° rotation for critical focus pulls.
  • Durable metal build ensures reliability, making this 20mm lens a solid investment.
  • Get creative with the 9-blade iris, producing smooth and circular out-of-focus highlights.
  • Designed for Canon EF mount, this high-speed lens delivers exceptional image quality.

What's in the box:

  • Sigma 20mm T1.5 FF High-Speed Prime Lens
  • (Feet)
  • Lens Support Foot
  • Front Lens Cap
  • Sigma 1 Year Limited Warranty