Sigma Cine 50mm T1.5 FF Lens - Sony Mount
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Wex Photo VideoSigma 50mm T1.5 FF Cine Lens - Sony E-mount
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Product Information
Full details
The Sigma Cine 50mm T1.5 FF Lens with Sony E-mount is designed for professional cinematographers using full-frame cameras who require exceptional optical performance for high-resolution productions (6K-8K). Its key benefit is delivering stunning image quality and a fast T1.5 aperture in a compact, durable package, ideal for various shooting scenarios. A potential caveat for some users might be its specialized nature, requiring familiarity with cinema lens operation.
All features
| Brand | Sigma |
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Extended Product Information
FAQs
Does this lens have autofocus capabilities?
No, the Sigma Cine 50mm T1.5 FF Lens is a manual focus lens designed for precise manual control by cinematographers.
What is the advantage of a T1.5 aperture over an F1.5 aperture?
A T-stop (Transmission stop) measures the actual amount of light transmitted through the lens, which is more accurate for exposure than an F-stop (Focal ratio). T1.5 provides a more precise indication of light transmission for consistent exposure.
Can I use this lens on a Canon EF mount camera?
This specific model is for Sony E-mount. Sigma offers this lens in PL and Canon EF mounts as separate products.
How does the standardized color balance (CCI) benefit me?
It ensures that different Sigma cine lenses maintain a consistent color profile, which significantly reduces the time and effort needed for color grading in post-production when switching between lenses.
What is the purpose of the 95mm front diameter?
The 95mm front diameter is a standard size in professional cinema lenses, ensuring compatibility with most professional matte boxes and lens support systems.
Is this lens suitable for still photography?
While it is built with an optical system capable of high resolution, its primary design is for cinema production with manual focus. For dedicated still photography, Sigma offers other lenses optimized for autofocus and specific still photography needs.
What is the filter size for this lens?
The front filter thread size is 82mm.
Troubleshooting
Lens not focusing smoothly
Ensure the focus ring is clean and free of debris. If the issue persists, the internal focusing mechanism may require professional servicing.
Image appears soft or out of focus
Confirm the lens is securely mounted to the camera. Double-check focus settings and ensure the subject is within the depth of field for the chosen aperture. Ensure the correct full-frame mode is selected on the camera if applicable.
Color cast present in footage
Verify that the camera's white balance is set correctly. If using multiple Sigma cine lenses, ensure they are from the same generation or series known for standardized color balance. Recalibrate camera settings if necessary.
Lens mount is stiff or difficult to attach
Inspect both the lens mount and the camera mount for any obstructions or damage. Gently try to align the mounting marks again. If resistance is significant, do not force; seek professional inspection.
Pros and Cons
Pros
- Exceptional optical performance suitable for 6K-8K resolution.
- Fast T1.5 aperture for low-light shooting and shallow depth of field.
- Robust, all-metal construction for professional durability.
- Consistent color balance across Sigma cine lenses.
- Large 180° focus throw for precise manual focus control.
- Standardized 95mm front diameter and 82mm filter thread for accessory compatibility.
Cons
- Primarily designed for manual focus, lacking autofocus capabilities.
- Can be a significant investment for independent filmmakers or hobbyists.
- Heavy reliance on manual operation requires experienced camera operators.
- Sony E-mount specific; requires adapter for other camera systems (if compatible).
Setup, Compatibility & Care
Setup: The Sigma Cine 50mm T1.5 FF Lens is designed for direct mounting onto cameras with a Sony E-mount. Ensure the camera's lens mount is clean before attaching the lens. Mount the lens by aligning the red mounting mark on the lens barrel with the red mark on the camera's E-mount. Rotate the lens clockwise until it clicks into place.
Compatibility: This lens is specifically designed for full-frame Sony E-mount cameras. While it can be mounted on Super35/APS-C Sony E-mount cameras, it will vignette significantly as it's designed to cover a larger sensor. Adapting to other lens mounts is not recommended and may not be possible due to flange distance differences.
Care: To maintain optimal performance and longevity:
- Cleaning: Use a soft, lint-free microfiber cloth to clean the lens elements. For stubborn smudges, use a lens cleaning solution sparingly on the cloth, not directly on the lens. Always wipe from the center outwards in a circular motion.
- Storage: Store the lens in its original protective case or a padded camera bag when not in use. Protect it from dust, moisture, and extreme temperatures.
- Handling: Avoid touching the lens elements with your fingers. Use the provided lens cap when not actively shooting.
- Maintenance: Periodically check for dust on the rear element and sensor contacts. Professional cleaning may be required for internal dust or issues.