Sigma 20mm T1.5 Cine Lens for Canon EF Mount

The image quality of a high-end prime lens. Full-frame compatibility—yet compact. Introducing a complete lineup of fine lenses.

The lineup ranges from 14mm to 135mm, and covers T1.5 to T2. The lenses are compatible with full frame, and while being more compact, it can offer superior resolution than other high­-end prime sets do. With the seven prime lenses from FF High Speed Prime Line, there is no need to change the lighting to shoot a variety of cuts, and it is possible to meet the demands that professional movie creation requires. 

Revolutionary lenses for the era of high resolution digital cinematography

Performance born of SIGMA's experience in ultra-high megapixel digital photography— now ready to take on every challenge in the world of cinematography.

In the new era of high-resolution movie production, the arrival of reasonably priced, high-performance digital cinema cameras has changed the standard of what makes an excellent product in the industry and has expanded the freedom and potential of movie production. At the same time, when it comes to cine lenses, price and brand recognition are still often taken as proof of performance, which ends up being proportional to the production budget. In contrast to consumer products, professional cinema equipment is by its nature difficult to manufacture in volume, in turn causing lens R&D and innovations in manufacturing technology to lag behind progress in cameras. But SIGMA is different. Responding to the demanding requirements for lenses in the era of ultra-high megapixel still photography, SIGMA has developed the technologies required to produce high-performance lenses in volume. They have what it takes to offer a new solution to the cine lens market.

A lineup offering an astonishing combination of specifications and value— all thanks to our ultra-efficient vertically integrated production system.

At SIGMA's sole production site, the Aizu factory, they perform nearly all processes in-house, from parts and mold production to final lens assembly. This vertically integrated production system comprises both product development and manufacturing, making it a true one-stop resource. Their artisans bring expertise and skill together at the highest level in the pursuit of outstanding optical performance, while their suite of leading-edge manufacturing technologies make possible ultra-efficient, highly precise volume production. Offering a full lineup that delivers compact design and maximum optical performance at minimal cost. A lineup that satisfies every professional film making need while expanding the freedom and potential of cinematography. A lineup that leverages minimal equipment and investment to maximum results. With the goal of providing uniquely innovative lenses and unprecedented value, SIGMA has developed its new line of cine lenses.

100% retained: ultra-high-performance optical system

SIGMA has combined the highest level of optical performance with compact design while keeping the cost of development and production to a minimum. SIGMA has played the leading role in the current era of 50-megapixel-plus ultra-high resolution still photography. Now, in the realm of cine lenses, SIGMA is leveraging the outstanding optical performance of its Global Vision still lens lineup, which has been acclaimed by photographers around the world. Featuring the same high-quality optical components including lens cells and aperture mechanisms, these cine lenses deliver the highest level of optical performance and amazing value.

100% new: mechanical structure

While retaining the same superb optical system, SIGMA’s cine lenses feature a completely updated mechanical structure. Supported by this new design, the optimized specification includes all of the essential functions required for modern cinematography. Since its foundation, SIGMA has believed in achieving top performance via high-precision parts.
This principle and SIGMA’s leading-edge manufacturing technologies have made possible ultra-high-efficiency mass production of these new lens lines.

Lineup

Wide focal length coverage

The lineup covers everything from wide angle to telephoto. Produce an entire work with SIGMA lenses alone.

Compatibility

Compatibility has been confirmed with each brand of cinema cameras.

Lenses for both S35 and full-frame

The High Speed Zoom Line is compatible with Super35, the image size standard used by typical digital cinema cameras, while the FF High Speed Prime Line and FF Zoom Line are compatible with a full-frame image circle.

Strong high-speed lens lineup

T1.5 or T2 is available in prime lenses, while T2 is available throughout the zoom range in zoom lenses. These options enable cinematographers to realize a wide range of expressive goals.

Image Quality

Inspecting each and every lens

There are three requirements for outstanding lenses: fine design, precise manufacturing and inspection that ensures compliance with all specifications. SIGMA lenses are born of outstanding design concepts and excellent manufacturing technology, but they are not complete until they undergo their uncompromising lens performance evaluation. SIGMA has developed their own A1 proprietary Modulation Transfer Function (MTF) measuring system using 46-megapixel Foveon direct image sensors. Even previously undetectable high-frequency details are now within the scope of their quality control inspections. Each and every lens is checked before shipping. Thanks to the ultra-high resolution sensors, high- performance shooting is assured.

Minimization of flare and ghosting

Computer-based ray tracing has been used from the design stage onward to minimize flare and ghosting and enhance contrast in backlit conditions. Ghosting has also been checked at every prototype stage, with its causes identified, assessed, and eliminated.

Sharpness combined with outstanding bokeh effect

To fulfill the high demands for image quality in still photography, SIGMA has solved a wide range of issues. The benefit of these efforts can now be enjoyed in cine lenses as well.

Color balance standardized across the lineup

All of the lenses in the lineup are designed to comply with SIGMA’s CCI standard. Standardized color balance makes color correction a snap.

6K-8K class resolution

The lineup features the same optical system that delivers 50-megapixel or higher resolution in still photography. These lenses are therefore ready for higher-resolution shooting and are ideal for chroma keying as well.

Build Quality

Lightweight and compact

Leveraging the high-precision, high-efficiency mass production technologies developed for its still camera lenses, SIGMA has made extremely lightweight and compact cine lenses a reality. Featuring all functions essential to cinematography, these lenses keep weight and size to a minimum, while their specification is optimized for enhanced durability. The end result is a combination of performance and compact design at the highest level.

Dust-proof and splash-proof construction

The lineup features the same dust-proof and splash-proof construction as the SIGMA 150-600mm F5-6.3 DG OS HSM｜Sports. With each ring and mount specially sealed to prevent water and dust from entering, this lens is ready for use in tough conditions. The unusually robust specification of the lineup allows the user to concentrate on shooting while significantly reducing the burden of maintenance.

100% metal body

The body is made completely of metal to stand up to tough professional use over the long term.

Luminous paint for enhanced visibility

The specification, gradation baseline, and lens change indications all feature luminous paint to aid in changing the lens in the dark and other tasks. Moreover, new FULLY LUMINOUS versions of the lenses feature the above plus rings whose numbers and gradations are finished with luminous paint.

Laser engraving for enhanced durability

Information on rings and elsewhere is laser-engraved for use over the long term. In addition, tape may be placed on gradations without fear of stripping away paint when it is removed.

Front

82mm filter size* [1]

The filter size is standardized at 82mm, allowing users to use the same size of ND filter on different lenses.
*Certain lens models are not compatible with 82mm filters.

95mm front diameter [2]

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.

Ring

Standardized gear positions [3] [4] [5]

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 [3] [4] [5]

Each lens has a 0.8M gear pitch, which is the standard for cine lenses, ensuring compatibility with existing accessories.

Silent ring stoppers [3] [4] [5]

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° focus rotational angle [3]

At 180°, 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.

160° zoom rotational angle [4]

At 160°, the rotational angle of the zoom ring is more than double that of a still camera lens, making possible extremely high-precision zooming.

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°.

Linear iris ring [5]

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

PL, EF and E*

Available lens mounts are the Canon EF mount, which is used on the majority of digital cinema cameras, and the Sony E-mount, which is used on the Sony FS series. All lenses in the lineup may also be used on still cameras with the compatible mount for outstanding DSLR movie shooting.
*24-35mm T2.2 FF is not available in PL mount.

Mount with electronic contacts [6]

The mount with electronic contacts allows the lens to communicate important information to the body (focal length, shooting distance, aperture etc.).

Enhanced EF mount* [6]

The hole for the stopper pin has been strengthened with a separate part to minimize loosening over time and enhance long-term use.
*Only applicable for Canon EF mount

Accessories

Dedicated lens support foot [7]

Coming as a standard accessory with all lenses in the lineup, the 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.

Robust accessory selection

The USB DOCK allows the user to connect the lens to a computer and update firmware, while the MOUNT CONVERTER MC-11 allows users to enjoy the high performance of SIGMA’s Canon EF mount interchangeable lenses with the Sony E-mount camera body. These and other accessories further enhance the convenience and ease of use of the new lens lineup.
Lenses come complete with a conventional cine-style front lens cap.