Sigma Cine 28mm T1.5 FF Prime Lens - PL-i Mount
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Product Information
Full details
The Sigma Cine 28mm T1.5 FF Prime lens is designed for professional cinematographers and production crews who require high-resolution optics for 6K and 8K workflows. Its primary benefit is the combination of a fast T1.5 aperture with integrated Cooke/i Technology, which streamlines post-production workflows by automating metadata recording. However, users should note that the PL-i mount configuration is specifically tailored for professional cinema camera systems and is not compatible with consumer mirrorless or DSLR mounts without dedicated adapters.
All features
| Brand | Sigma |
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Extended Product Information
FAQs
Can this lens be used on mirrorless cameras?
Yes, but only if you use a high-quality PL-to-Mirrorless adapter that maintains structural integrity and fits the mount profile correctly.
Does this lens have autofocus?
No, the Sigma Cine 28mm T1.5 is a manual focus lens designed for professional cinema applications where precise manual control is required.
What is the benefit of Cooke/i technology?
It records lens data such as focus, aperture, and focal length for each frame, significantly speeding up the visual effects and post-production matching process.
Is this lens weather-sealed?
While it is built to professional standards for film production, it is not considered waterproof or fully weather-sealed; always protect it during inclement weather.
Does the lens exhibit breathing when pulling focus?
The lens is designed for minimal focus breathing, which is a critical requirement for professional cinematography where smooth focus transitions are essential.
Troubleshooting
Lens metadata not displaying on camera monitor
Check that the camera firmware is compatible with Cooke/i metadata and ensure the lens is fully locked into the PL-i mount for proper contact engagement.
Focus markings feel stiff or imprecise
Ensure the follow focus gear is properly aligned and that no dust or grit has entered the lens barrel; if the issue persists, contact an authorized Sigma service center.
Pros and Cons
Pros
- Excellent optical performance at 6K and 8K resolutions
- Fast T1.5 aperture for superior low-light capability
- Integrated metadata support through Cooke/i protocol
- Compact housing reduces fatigue during handheld operation
- Professional-grade build quality for heavy-duty production
Cons
- PL-i mount limits use to professional cinema bodies
- Manual focus only, requiring a trained focus puller
- Premium investment compared to standard photographic lenses
Setup, Compatibility & Care
To begin, ensure your cinema camera supports the PL-i mount standard. When attaching the lens, align the index pins on the PL mount with the camera flange and rotate the locking ring clockwise until secure. If you intend to utilize the Cooke/i metadata, verify that your camera's firmware is updated and that the metadata setting is toggled to 'On' within the camera menu.
For care and maintenance:
- Always store the lens in a protective, padded cinema case when not in use.
- Use a professional lens cleaning kit with a soft blower and microfiber cloth for the front and rear elements.
- Keep the PL mount contacts clean and free of debris to ensure consistent metadata transmission.
- Avoid exposing the lens to extreme humidity or rapid temperature changes to prevent internal fogging.