The ZEISS CZ.2 70-200mm T2.8 is a professional-grade zoom lens designed for use with cinema cameras. It is part of the ZEISS Compact Zoom (CZ.2) series and is favored by cinematographers for its optical performance, robustness, and versatility in motion picture production. Here are the technical details for this lens:
Key Specifications:
- Focal Length: 70-200mm
- Maximum Aperture: T2.8
- Mount: Available in both PL mount and EF mount versions
- Optical Design: 18 elements in 14 groups
- Image Circle: Covers Full Frame (35mm format) or Super 35mm sensors
- Focus Mechanism: Manual focus with a long, consistent focus throw
- Minimum Focus Distance:
- 1.2 meters (3.9 feet) at 70mm
- 1.4 meters (4.6 feet) at 200mm
- Filter Thread Size: 95mm
- Weight: Approximately 2.8 kg (6.2 lbs)
- Dimensions:
- Length: 185 mm (7.3 inches)
- Diameter: 114 mm (4.5 inches)
Optical Features:
- ZEISS T Coating:* Reduces reflections and ghosting, providing excellent contrast and color accuracy.
- Consistent T-stop: Maintains the same T-stop (T2.8) throughout the entire zoom range, making it suitable for dynamic shooting.
- Minimal Breathing: The lens is designed with minimal focus breathing, which is especially important for cinematography, as it ensures minimal changes in the framing while adjusting focus.
Build and Usability:
- Robust Construction: Built with a durable housing that withstands the rigors of professional use, including all-metal lens body.
- Zoom and Focus Rings: The lens features well-damped and ergonomically designed rings, with a smooth zoom and focus action, allowing precise control during filming.
- Interchangeable Mounts: Available in both PL and EF mounts, making it versatile for use with different camera systems.
Other Features:
- Back Focus Adjustment: Allows for fine-tuning of back focus, which is important for maintaining sharp focus accuracy, especially in demanding cinematic environments.
- Internal Focusing: Maintains the same length while focusing, preventing any extension of the lens barrel.
- Parfocal Design: The lens maintains focus even when zooming in or out, which is crucial for motion picture production.
Applications:
- Ideal for high-end cinematic productions, TV shows, commercials, and other professional film and video applications.
- Particularly well-suited for handheld or gimbal use due to its relatively compact and balanced design for its focal length range.
Overall, the ZEISS CZ.2 70-200mm T2.8 is known for its superb optical quality, build durability, and smooth operational feel, making it one of the most popular cinema zoom lenses in its class.
