General / Other Manuals
SIRUI 100mm T2.9 1.6x Full-Frame Anamorphic Lens Instructions
Comprehensive user guide for the SIRUI 100mm T2.9 1.6x Full-Frame Anamorphic Lens, covering setup, product features, and maintenance instructions.
Table of contents
Product Overview
The SIRUI 100mm T2.9 1.6x Full-Frame Anamorphic Lens is a high-precision optical tool designed for professional cinematography. It allows users to capture wide-screen video in a 16:9 aspect ratio, which can be desqueezed in post-production to achieve a cinematic 2.8:1 aspect ratio. The lens is constructed with an aircraft-grade aluminum housing and features high-quality glass elements with nano-coatings to ensure durability and superior image quality.
Lens Features and Setup
This lens is engineered to provide unique anamorphic bokeh effects and excellent depth of field control. The aperture ring allows for smooth adjustments, while the robust build quality ensures reliability in various shooting environments. To attach the lens to your camera, align the red dot on the lens with the corresponding dot on the camera mount and rotate the lens clockwise until it clicks into place. For removal, press the lens release button on the camera and rotate the lens counter-clockwise.
Product Precautions and Maintenance
To maintain the longevity and performance of your lens, please follow these guidelines:
- Avoid long-term exposure to wet environments to prevent mold and rust.
- Store the lens in an airtight cabinet with a drying agent when not in use.
- Do not touch the glass surfaces with your fingers. Use a professional lens cleaning cloth and cleaning solution to remove dust or smudges.
- When transporting the lens between environments with significant temperature differences, place it in a camera bag to allow it to acclimate slowly, preventing condensation.
- Keep the lens away from rain and water to avoid internal damage.
Technical Specifications
The lens features a 100mm focal length with a maximum aperture of T2.9 and a minimum aperture of T16. It consists of 15 elements in 13 groups and supports full-frame sensors. The minimum shooting distance is 3 feet (0.93m). The lens uses a manual focus method and has a filter specification of M82 x 0.75. The rotation angle of the focus ring is 100 degrees, providing precise control for focus pulling during filming.
Manufacturer information
SIRUI Optical Co., Ltd.
Practical help
Common problems
Condensation inside the lens
Allow the lens to slowly adapt to the ambient temperature by keeping it in a camera bag when moving between different temperature environments.
Dust or smudges on glass
Gently clean the glass surface using a professional lens cleaning cloth and appropriate cleaning solution. Avoid touching the glass with fingers.
Before use
- Ensure the camera mount is clean.
- Align the red dot on the lens with the camera mount.
- Rotate the lens clockwise until it is securely locked.
- Check that the aperture ring moves smoothly.
- Verify the focus ring rotates freely within its range.
Specs in practice
- Focal Length
- 100mm, defining the lens's field of view and magnification.
- Maximum Aperture
- T2.9, indicating the lens's light-gathering capability.
- Lens Structure
- 15 elements in 13 groups, representing the internal optical design.
- Focus Method
- Manual Focus, requiring the user to adjust focus manually.
Images and diagrams
- 1: Top Lens Cap
- 2: Focus Ring
- 3: Indicator Ring
- 4: Aperture Ring
- 5: Bottom Lens Cap
Model compatibility
- Designed for Full-Frame sensor cameras.
- Available in multiple mount versions (L, RF, E, Z mounts).
Manual page author
Emily Carter
User documentation editor
Prepares concise manual descriptions and highlights the most useful setup, operation, and maintenance information for readers.