The Sigma CINE ZOOM 18-35mm T2.0 EF is a professional cinema lens designed for use in film production and high-end video work.
General Overview:
- Lens Type: Cinema Zoom Lens
- Mount: Canon EF mount (for compatibility with Canon EF-mount cameras)
- Focal Length: 18-35mm
- Maximum Aperture: T2.0 (constant throughout the zoom range)
- Lens Construction: 9 groups / 13 elements
- Angle of View:
- Diagonal: 99.1° (18mm) to 54.4° (35mm)
- Horizontal: 83.0° (18mm) to 47.5° (35mm)
- Vertical: 46.3° (18mm) to 26.7° (35mm)
Physical Specifications:
- Weight: Approx. 1,080g (2.38 lbs)
- Length: 126.4mm (4.98 inches)
- Diameter: 87mm (3.43 inches)
- Front Filter Size: 82mm
- Iris Blades: 9 (rounded aperture for better bokeh)
- Focus Rotation: 200° (smooth, long focus throw)
- Zoom Rotation: 90° (smooth zoom mechanism)
Optical Performance:
- Minimum Focusing Distance:
- 28cm (at 18mm)
- 30cm (at 35mm)
- Maximum Magnification: 0.16x (at 35mm)
- Optical Coating: Sigma’s proprietary coatings (for reducing flare and ghosting)
- Color Temperature: Consistent color throughout the zoom range
- Distortion: Low distortion, with minimal chromatic aberration and a well-controlled optical performance
Features:
- High-Quality Build: Designed for cinema use, with robust, durable construction.
- EF Mount: Compatible with cameras using the Canon EF mount. Adaptors available for other camera systems (e.g., PL, Sony E, etc.).
- Focus and Zoom Marks: Industry-standard focus and zoom position markings for ease of use.
- Cinema-Style Aperture: The T2.0 aperture remains constant throughout the zoom range, providing consistent exposure during zooming.
- Manual Focus and Zoom: Designed for manual control, with smooth and precise focus and zoom rings.
- Zoom Range: Versatile 18-35mm focal length ideal for wide-angle and standard shots.
Compatibility:
- Works well with cinema cameras and DSLR/Mirrorless systems, especially for video work.
- Ideal for gimbals, drones, and other motion picture setups due to its relatively lightweight and balanced design.
Conclusion:
The Sigma CINE ZOOM 18-35mm T2.0 EF is known for its high optical performance, smooth focus/zoom mechanics, and fast T2.0 aperture, making it an excellent choice for professionals needing reliable, versatile lenses for cinema or video production.
