SIRUI Jupiter 50mm T2 Full Frame Macro Cine Prime Lens - EF Mount
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Product Information
Full details
The SIRUI Jupiter 50mm T2 Macro Cine Lens is designed for professional photographers and videographers seeking to explore intricate details with exceptional clarity. Its key benefit is the ability to capture stunning macro shots with a sharp center and pleasing edge fall-off, enabling close-up exploration from 0.24m (0.79ft). A minor caveat is its manual focus-only operation, requiring precise user input. This lens offers superior optical performance, minimal focus breathing for smooth focus pulls, and a constant T2 maximum aperture for excellent low-light capability and shallow depth of field.
All features
| Brand | Sirui |
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Extended Product Information
FAQs
What is the minimum focusing distance of this lens?
The minimum focusing distance for the SIRUI Jupiter 50mm T2 Macro Cine Lens is 0.24 meters (0.79 feet).
Is this lens suitable for video recording?
Yes, this lens is specifically designed for cine applications, featuring minimal focus breathing and smooth manual focus control, making it ideal for video recording.
What does 'T2' aperture mean?
T2 refers to the actual amount of light transmitted through the lens, which is crucial for cinematographers. It indicates a fast aperture suitable for low-light conditions and achieving a shallow depth of field.
Can I use this lens on cameras with different mounts, like Sony E-mount?
This lens features an EF mount. You will need a compatible EF-to-Sony E-mount adapter to use it on Sony E-mount cameras. Ensure the adapter supports electronic communication if needed, though this lens is manual focus.
How do the optical coatings benefit the image quality?
The optical coatings help to eliminate veiling glare and ghosting, resulting in superior sharpness, accurate color reproduction, and better control over optical aberrations.
What is the lens construction?
The lens has a construction of 13 elements in 10 groups.
What is the maximum aperture number and minimum aperture number?
The maximum aperture is T2, and the minimum aperture is T22.
How many diaphragm blades does the lens have?
The lens features 11 diaphragm blades, which contribute to smooth bokeh.
Troubleshooting
Lens is not focusing sharply.
Ensure you are within the focus range (0.24m to infinity). Double-check that the lens is securely attached to the camera body or adapter. Use manual focus carefully and confirm the camera's focus confirmation system is aligned with the lens.
Image appears soft or lacks contrast, especially at the edges.
This is a characteristic of the lens's design, providing a sharp center with a gradual fall-off. If a flatter field of focus is desired, consider stopping down the aperture (e.g., to T8 or T11) and increasing the distance from the subject if possible. Ensure the lens coatings are clean.
Focusing is difficult or inaccurate.
Practice with the manual focus ring, which has a 220° rotation for precision. Utilize focus peaking or magnification features on your camera if available. Ensure the focus gear ring is clean and rotates smoothly.
Camera does not recognize the lens.
Check for proper seating of the lens on the camera mount or adapter. If using an adapter, ensure it is compatible and securely attached. Clean the lens contacts and camera mount contacts.
Pros and Cons
Pros
- Exceptional sharpness in the center for detailed macro work.
- Pleasing, gradual fall-off of contrast and light towards the edges.
- Very close minimum focusing distance (0.24m / 0.79ft).
- Superior control over optical aberrations and distortion.
- Minimal focus breathing ideal for video applications.
- Constant T2 aperture for low-light shooting and shallow depth of field.
Cons
- Manual focus only, requiring precise user control.
- Can be heavy (1.06kg / 2.35lbs), potentially requiring sturdy support.
- EF mount may limit compatibility with certain camera systems without adapters.
- Gradual contrast fall-off at edges may not be desired for all shooting styles.
Setup, Compatibility & Care
Setup:
This lens features an EF mount, making it directly compatible with Canon EF-mount cameras. For other camera mounts, an appropriate adapter may be required. Ensure the adapter is securely attached before mounting the lens.
Compatibility:
Designed for full-frame and larger camera sensors. The EF mount is a standard mount, but always verify compatibility with your specific camera body and any necessary adapters.
Care:
- 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, never directly on the lens.
- Storage: Store the lens in its protective cap or a padded camera bag when not in use to protect it from dust, moisture, and impact.
- Handling: Avoid touching the lens elements with your fingers. Use the manual focus ring carefully to avoid damage.
- Environment: Protect the lens from extreme temperatures, humidity, and direct sunlight for extended periods.