Sigma Cine 20mm T1.5 FF Lens - Canon EF Mount
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Wex Photo VideoSigma 20mm T1.5 FF Cine Lens - Canon EF Mount
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Product Information
Full details
The Sigma Cine 20mm T1.5 FF lens is designed for professional cinematographers and videographers requiring high-resolution, full-frame performance for 6K and 8K production environments. This high-speed prime lens offers exceptional light-gathering capabilities and superior optical clarity, making it an excellent choice for cinematic wide-angle shots and chroma key applications; however, its heavy-duty metal construction and manual-only focus operation make it best suited for dedicated cinema rigs rather than run-and-gun or casual photography setups.
All features
| Brand | SIGMA CORPORATION OF AMERICA |
|---|
Extended Product Information
FAQs
Is this lens autofocus compatible?
No, the Sigma Cine 20mm T1.5 FF is a fully manual cine lens designed for professional focus pulling.
Can I use this lens for photography?
While the optics are of high quality, it is designed for video workflows and lacks electrical contacts for camera-to-lens communication typically used in photography.
What is the standard focus rotation for this lens?
The lens features a 180-degree focus rotation to allow for smooth and precise focus pulling.
Does it work on Super 35 cameras?
Yes, it is designed for full-frame sensors but works perfectly on Super 35 cameras, where you will see a crop factor equivalent to a longer focal length.
What is the front diameter for matte box compatibility?
The lens features a standard 95mm front diameter.
Are the focus and iris gears in the same place as other Sigma Cine lenses?
Yes, Sigma Cine lenses feature standardized gear positions to ensure quick lens changes during production without needing to readjust follow-focus units.
Troubleshooting
Focus gears feel stiff or resistant during use
Check that the follow-focus unit is correctly mounted and that the teeth are properly aligned with the focus ring gear without being over-tightened.
Image appears soft at the edges
Verify that the lens is perfectly flush with the camera mount; an improperly seated lens mount will cause focus plane tilting.
Matte box won't fit the front diameter
The lens has a standard 95mm front diameter; confirm your matte box clamp-on adapter is sized for 95mm or use a step-up ring.
Pros and Cons
Pros
- Outstanding optical clarity suitable for 8K resolution
- Excellent low-light performance with T1.5 aperture
- Industry-standard gear positions for easy accessory integration
- Superior color consistency across the lens series
- Ideal for complex post-production tasks like chroma keying
Cons
- Manual focus only, which may be challenging for solo shooters
- Substantial build weight compared to standard photographic lenses
- Requires professional cinema rigging for optimal use
Setup, Compatibility & Care
To integrate this lens into your workflow, ensure your camera rig features a compatible PL, EF, or E-mount adapter setup depending on your specific lens mount. Because the lens features a 95mm front diameter, it is designed to work with most professional-grade matte boxes; use the appropriate step-down or adapter rings if your specific matte box requires it.
Maintain the lens by keeping the front and rear elements clean with professional optical wipes and a blower. Given the manual-focus nature of the lens, ensure your follow-focus gears are properly aligned with the focus ring teeth before starting a shoot. Always store the lens in a padded, moisture-controlled camera case when not in use to protect the precision optical assembly.