Sigma Cine High Speed Zoom Lens Kit - PL Mount

The Sigma Cine High Speed Zoom Lens Kit includes the 50-100mm T2 and 18-35mm T2 lenses, designed f...

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Wex Photo VideoSigma 50-100mm T2 & 18-35mm T2 Cine Zoom Lens Kit - PL Mount
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Product Information

Full details

This Sigma Cine High Speed Zoom Lens Kit, featuring the 50-100mm T2 and 18-35mm T2 lenses with PL mounts, is designed for professional filmmakers working with Super 35mm format cameras. Its key benefit is providing outstanding optical performance with a constant T2 aperture, enabling superior low-light shooting and shallow depth-of-field effects suitable for resolutions up to 8K. A potential caveat is its specific PL mount, requiring compatible camera bodies or adapters.

All features

BrandSIGMA CORPORATION OF AMERICA

Extended Product Information

FAQs

What is the main advantage of a T2 aperture?

A T2 aperture (True Aperture) is a precise measurement of light transmission. It allows for more accurate exposure control compared to an F-stop, especially in low light, and enables achieving a shallower depth of field for a cinematic look.

Are these lenses suitable for full-frame cameras?

These lenses are designed and optimized for Super 35mm format cameras. While they might cover some parts of a full-frame sensor, vignetting or significant image degradation may occur at the edges, especially at wider focal lengths.

How do I clean the lens elements?

Use a blower to remove loose dust, then gently wipe the element with a lens brush. For smudges, apply a small amount of lens cleaning fluid to a microfiber lens cloth and wipe in a circular motion from the center outwards. Never spray fluid directly onto the lens.

What is the purpose of the 95mm front diameter?

The standardized 95mm front diameter is a common size for professional cinema matte boxes, allowing for easy attachment and consistent positioning of filters and other lens accessories without needing different adapters for each lens.

Can I use filters with this lens kit?

Yes, both lenses feature an 82mm filter thread on the front, allowing you to use standard screw-in filters such as ND, UV, or polarizers.

What is the rotation angle for focus and zoom?

The lenses offer a 180° focus rotational angle and a 160° zoom rotational angle, providing ample range for precise manual adjustments during filming.

What type of cameras are these lenses designed for?

These lenses are specifically designed for professional cinema cameras utilizing the PL lens mount and are optimized for the Super 35mm sensor format.

Troubleshooting

Lens does not mount to camera

Ensure the camera has a PL mount or a compatible adapter. Verify that the lens mount and camera mount (or adapter) are clean and free of debris. Check that the lens is aligned correctly with the mount index before attempting to attach.

Image appears soft or out of focus

Confirm the lens is properly focused for the scene. Check that the correct aperture (T-stop) is selected and that the focus ring is set accurately. Ensure the camera's sensor is clean and the lens is securely attached.

Zoom or focus ring feels stiff

Gently operate the ring through its full range. If stiffness persists, avoid forcing it and contact authorized service personnel, as this may indicate an internal issue.

Inconsistent color rendition between lenses

While designed for standardized color balance, minor variations can occur. Ensure consistent white balance settings on your camera. Fine-tuning in post-production may be necessary for absolute uniformity.

Pros and Cons

Pros

  • Exceptional optical quality suitable for high-resolution formats.
  • Constant T2 aperture allows for consistent exposure and creative depth-of-field control.
  • Durable all-metal construction built for professional environments.
  • Standardized front diameter and filter threads simplify accessory use.
  • Wide manual focus and zoom throw angles provide precise operability.

Cons

  • PL mount is specific and may require adapter solutions for non-PL cameras.
  • Designed for Super 35mm format; coverage on full-frame sensors may vary.
  • As zoom lenses, they may exhibit minor breathing (change in field of view during focus) or internal reflections under extreme lighting conditions.

Setup, Compatibility & Care

Compatibility: This lens kit features PL mounts, designed to directly attach to cinema cameras equipped with PL lens mounts. For cameras with other mounts (e.g., Canon EF, Sony E), an appropriate PL-mount adapter is required. The lenses are optimized for Super 35mm camera sensors.

Setup: Mount the lens by aligning the PL mount index mark on the lens with the corresponding mark on the camera body. Gently insert the lens and rotate it clockwise until it clicks into place. Ensure the lens is securely attached before use.

Care: To maintain optimal performance and longevity:

  • Always use the provided lens caps when the lens is not mounted.
  • Store the lenses in the durable hard case when not in use to protect them from dust, impact, and moisture.
  • Clean lens elements using a dedicated lens cleaning solution and a microfiber lens cloth. Avoid touching the glass elements with your fingers.
  • For the lens body, use a soft, dry cloth. For stubborn smudges, a slightly damp cloth can be used, but ensure no moisture enters the lens mechanism.
  • Avoid extreme temperature or humidity exposure.

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