Rokinon 20mm T1.9 Cine DS Lens - Canon EF
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Product Information
Full details
The Rokinon 20mm T1.9 Cine DS Lens is a professional-grade wide-angle prime designed for filmmakers and videographers using Canon EF mount cameras, offering a fast T1.9 aperture that excels in low-light conditions. While it delivers exceptional cinematic image quality and seamless integration into professional rigs, users should be aware that it is a manual focus lens, which requires practice for precise racking during high-paced shooting.
All features
| Brand | Rokinon |
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Extended Product Information
FAQs
Is this lens compatible with APS-C sensors?
Yes, this lens is fully compatible with both full-frame and APS-C DSLR cameras.
Can I use this for still photography?
Yes, it functions perfectly for still photography, though you must operate the focus and aperture manually.
Does this lens have autofocus?
No, this is a manual focus lens designed specifically for cinematic video production.
What is the filter thread size?
The Rokinon 20mm T1.9 Cine DS uses a 77mm filter thread.
Does it come with a lens hood?
Yes, the lens includes a removable lens hood to help block stray light and prevent lens flare.
What is the purpose of the unified gears?
The unified gears are placed in the same position across the Cine DS line, allowing for quick lens changes without moving your follow-focus gear.
Troubleshooting
Image appears soft at T1.9
Verify manual focus accuracy using a focus magnifier or focus peaking on your camera display.
Aperture changes are stepped rather than smooth
Ensure the aperture ring is fully engaged and not obstructed; verify the de-clicked mechanism is functioning correctly.
Lens does not mount to the camera
Check that the camera mount is a Canon EF mount and ensure there is no debris blocking the mount flange.
Pros and Cons
Pros
- Fast T1.9 aperture ideal for low light
- Standardized gears for follow-focus compatibility
- Excellent flare suppression due to UMC coatings
- Versatile wide-angle focal length
- Smooth de-clicked aperture ring
Cons
- Manual focus only, no autofocus capabilities
- Larger and heavier compared to standard photo primes
- Requires professional rigging for best results
- No image stabilization
Setup, Compatibility & Care
The Rokinon 20mm T1.9 is designed specifically for the Canon EF mount. To set up, simply align the red dot on the lens with the corresponding mark on your camera body and rotate clockwise until it clicks. When integrating into a professional rig, ensure your follow-focus gears are properly tightened to the lens housing to avoid slippage. For care, always keep the lens caps on when not in use to protect the glass from dust and scratches. If the lens is used in dusty conditions, use a soft blower to remove debris from the external glass surfaces and store it in the provided pouch when in transit to prevent physical damage.