Sigma's FF High-Speed Prime Lenses combine the same high-quality optics and mechanics of their Global Vision still line in a cine-oriented design. This 20mm Canon EF mount prime is a wide focal length in the series, offering full frame sensor coverage, 6 to 8K resolution, and a T1.5 aperture in a compact, lightweight form; it is also available in Sony E and PL mounts. A common 95mm front diameter and similar physical attributes across the lens line make it easier and quicker to mount lens accessories such as matte boxes, follow focuses, and lens control motors.

The 9-bladed iris produces pleasing out-of-focus bokeh effects, and ghosting and flaring have been minimized. Color reproduction is standardized for easier color correction. Each lens in the range offers consistent lens gear positions and 180° of focus barrel rotation. The FF High-Speed Primes also feature a clickless iris with linear markings, dampeners on each gear ring for silent operation, industry-standard 0.8 module gear pitch, and engraved markings for durability. Focus marks are in feet with select markings in luminous paint for easy visibility in low light.

To relieve stress on your camera's lens mount, a support foot is built into the dust- and water-resistant metal lens body. If you wish to fit your FF High-Speed Prime lens to a different camera, the Canon EF and Sony E mount versions can be converted from one to the other by an authorized Sigma service center (not available for PL mounts).

20, 24, 35, 50, and 85mm Focal Lengths    Covers Full Frame Sensors    Fast T1.5 Maximum Aperture    Hard-Shell Lens Case Included    Geared Focus and Iris Control Rings    Clickless Iris Ring    Lens Scales Marked in Feet    Common 95mm Front Diameter    9-Blade Iris

Focus marks are in feet with select markings in luminous paint

High image performance covering full frame sensors; suitable for 8K capture

Fast T1.5 maximum aperture aids in shooting with low light levels

Compact, dust- and water-resistant design with a common front diameter of 95mm across the line

Canon EF and Sony E mounts may be swapped at an authorized Sigma service center (not available for PL mount versions)

Related Questions and Answers

Q: 1. Does the Sigma /i lenses have a port for Cooke /I or is that information only exchanged over the mount?

A: The information is communicated over the mount, electronically.

Q: 2. Does this come with a case?

A: Yes it does. The Sigma PMC-002 Hard Case for 5x FF High Speed Prime Cine Lenses is included with this kit.

Q: 3. Can we use this lens with Canon Speedbooster on Red Komodo and not creating vignetting? Thanks.

A: Yes, you can use the Canon Mount Adapter EF-EOS R 0.71x with the Sigma 40mm T1.5 FF Canon EF Mount Lens. There will be no vignetting.

Q: 4. The sigma prime are avaible immediately ?

A: This kit itself is a Special Order Product that comes from Sigma directly. However we have the 5 lenses in the kit in stock and ready to ship at the time of this posting, April 22nd 2018. Here are the B&H numbers for the 5 lenses:B&H # SI20T15FFPLB&H # SI24T15FFPLB&H # SI35T15FFPLB&H # SI50T15FFPLB&H # SI85T15FFPL

Q: 5. Will this lens work with the Sony NEX 7?

A: Yes it will. The Sony NEX-7 is an E-Mount camera, this lens is compatible.

Q: 6. Is there a case for the PL lenses?

A: The Sigma PMC-002 Hard Case for 5x FF High Speed Prime Cine Lenses can accommodate the PL version of the Sigma High Speed Prime Cine Lenses.

Q: 7. Is there a Cooke/I dataport as well like on Zeiss XD or Cooke lenses? Or is the /I data just transferred via the mount

A: this lens supports standard cooke i Technology through the lens mount, there is no extended data or expanded I support

Q: 8. Does the Sigma 28mm and 65mm fit this case as well?

A: The 65mm lens is about the same size as the 85mm an should work with the case. The 28mm would fit in one of the spaces reserved for the 20/24/35/50. The case was designed for the following kit of lenses. Sigma FF High-Speed 24, 35, 50, 85 & 135mm Prime Lens Bundle (EF Mount) BH #SICLK7EF

Q: 9. Can this 5 lens kit be configured with any choice of focal length? I.e. Could you get 14mm, 20mm, 50mm, 85mm and 135mm?

A: This is a manufacturer kit and thus no substitutions and no returns.

Q: 10. Why does it say the kit has an 85mm but has a 135mm in the photo and no 85?

A: The kit has an 85mm lens and the group picture is incorrect.