The Sigma 18-35mm T2 High-Speed Zoom Lens Sony Ewith a Sony E-mount and with focus scales marked in feet provides an image circle that covers Super 35mm-sized sensors. It features a maximum T-stop of 2, and the aperture does not ramp over the zoom range. It shares common lens gear positions with the other lens in the Sigma High-Speed Zoom lineup, which makes for rapid lens changes. What sets these lenses apart from the standard Sigma High Speed Zooms is fully luminescent markings. When shooting in dim or dark environments, focus pullers and camera operators will be able to easily discern lens markings without resorting to distracting lamps or other disruptive light sources.

The 9-bladed iris provides round out-of-focus highlights for a natural-looking bokeh. The lens barrel features 180° of rotation from close focus to infinity, the zoom barrel rotates 160°, and the clickless iris ring features 60° of rotation. All three lens control rings are geared with cine-standard 0.8 Mod gears, and the focus scale is marked in feet. The front of the lens is 95mm in diameter with a removable 1/4"-20 support foot that helps support the lens with the aid of a 1/4"-20 rod-mounted lens support (not included).

Covers Super 35mm Sensors    28.4mm Image Circle    Internal Focus Design    180° Focus Barrel Rotation    T2 Max Aperture, Clickless 9-Bladed Iris    Weighs 3.32 Pounds    Luminescent Lens Markings    95mm Front Lens Diameter    Removable Lens Support Foot

All the lenses in the lineup are designed to comply with SIGMA's CCI standard simplifying when intercutting between lenses.

Sharing the same dustproof and splashproof construction as the SIGMA 150-600mm F5-6.3 DG OS HSM｜Sports, each ring and mount is sealed to prevent water and dust from entering.

The lens body is made completely of metal to stand up to the rigors of the production day.

The main lens markings are in luminous paint for easy visibility in low light situations. The intermediate markings are laser-engraved for durability. The focus and zoom markings are readable from either side of the lens.

The lens features a 95mm front diameter for compatibility with a wide variety of matte boxes and incorporates an 82mm front filter thread.

All three lens gears are standard 0.8 Mod and feature a damper that eliminates metallic sounds when you reach the end of the lens travel.

The lens includes a removable support foot.

Related Questions and Answers

Q: 1. Can we shim this lens?

A: Like any lens, this lens has the ability to be shimmed so that it may be properly collimated. Unlike some lenses that are available with user changeable mounts, this lens is not sold with the understanding that the user (and not a qualified technician) will do their own collimating. If you feel confident to do so, it is your lens, go ahead. Just be aware such action will probably void any warranty.

Q: 2. what would be the focal length of the 18-35 on the Red Gemini?

A: The Sigma 18-35mm T2 High-Speed Zoom Lens (PL), this item BH #SI1835T2CZPL • MFR #21096 is designed for Super 35. The Red Gemini is uses a Super 35 sensor. The focal length would be the same, there would be no crop factor of vignetting.

Q: 3. Does this lens have electronic contacts to communicate with the camera? Will it work with the focus assist feature of the Canon cinema cameras like the CN-E primes do? (Not autofocus, but the green box indicator)

A: These lenses have electronic contacts and will communicate. We are unable to test but it is our opinion that focusing aids will work.

Q: 4. What is the difference between this lens and the sigma 18-35 that is much cheaper?

A: This cinema lens is manual focus only, has gears, greater throw, accurate markings and more robust housing made with finer tolerances. This are specifications that come into play on higher level video productions particularly ones that are working day to day with a crew. For one man band personal video it could be overkill.

Q: 5. are these lenses parfocal?

A: This is not a parfocal lens.

Q: 6. Putting this on the BMPCC6K will it be 18-35 or will it be 18(×1.55)-35(×1.55) like the sigma art zoom.

A: The PCC6K has a 1.558X Crop Factor. An 18 to 35mm will be the equivalent of a 28 - 55.5mm lens.

Q: 7. Are support rods crucial if Im mounting to Ursa Mini Pro 4.6? I intend to add that too my rig, but right now building one piece at a time.

A: I use these on my URSA Mini Pro and I don't use any support rods. The lens fits the camera very well.

Q: 8. Will this lens work on the z cam e2 s6?

A: The Z Cam E2-S6 in the Canon EF-mount version will work with the Sigma 18-35mm Cine Lens (Canon EF Mount).

Q: 9. does PL version have /i metadata?

A: No, the PL version does not have /i metadata.

Q: 10. Is there a version with a Cooke/I lens data port?

A: No. The lens would have to be serviced in order to do so. Sigma Burbank supports a lens conversion service that will convert passive PL mount Sigma Cine Primes to a /i PL mount. If you find yourself in need of amplifying your workflow with metadata, then the conversion service will allow that without needing to buy brand new lenses. If you’re interested in the lens conversion service or wish to know pricing then please reach out to: Sigma Burbank Service Department 213-699-0561 | serviceca@sigmaphoto.com