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 Sony E 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 Canon EF 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).

Prime Lenses for Sony E-Mount Cameras    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. When shooting in the set, have you ever thought that you wish the focus of these lenses had a 300-degree rotation instead of 180? Would you mind describing the situation?

A: Large focus throws are imperative when working with significantly shallow depth of field.

Q: 2. 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: 3. 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.

Q: 4. Is there a 65mm Sigma Art version with autofocus?

A: No, there is no autofocus version of the Sigma 65mm T1.5 FF High-Speed Cine Prime Lens (Canon EF Mount, Feet) in EF mount.

Q: 5. What lens mount is this set?

A: Thank you for your interest in Sigma products. This is a PL mount set.

Q: 6. Love this lens but the ARRI LMB 4x5 mattebox 95mm clamp on adapter ring doesn’t cover the gaps on left and right side. In other words, because the lens hood has the cut outs on the left and right side of the lens, the mattebox adapter ring isn’t deep enough to cover those gaps. So, you have to tape the openings each time you use this lens. Or, is there a better solution? A deeper adapter ring? It needs to remain at 95mm so that it’s easy to swap lenses.

A: As an alternative, you can use a 15mm LWS rod system so you can mount the mattebox using ARLMB4515LWS and ARLMB45TFA. https://www.bhphotovideo.com/c/product/1341037-REG/arri_k2_0013427_lmb_4x5_15mm_lws.html https://www.bhphotovideo.com/c/product/1341036-REG/arri_k2_0014206_lmb_4x5_tilt_and.html

Q: 7. How much does the lens itself weight? The specs only list package weight

A: The PL version weighs 1.5 kg / 3.3 lb.

Q: 8. With this lens if I place it on my Red camera in a water housing can i purchase a screw in ND Filter? Or something can be clapped on the front?

A: When using the Sigma 14mm T2 FF High-Speed Prime (EF Mount) you would need to use a dome port. So you would not be able to use a screw in ND Filter or use a clamp.You could get a ND gel filter and place it inside the dome.

Q: 9. Does the Sigma ART line of smaller (photography sized) lenses feature the same optical performance as these?

A: When it comes to lenses the quality of the lens can be subjective, but I would say the look/operation of the Sigma 50mm T1.5 Fully Luminous FF High-Speed Prime (EF Mount, Feet) would general be considered superior to the Sigma ART series.

Q: 10. Will this PL Mount lens work with the RED PL mount fixture?

A: Yes it will.