The Catadioptric Medium-wave Cooled Continuous Zoom Lens combines both reflective (mirror) and refractive (lens) elements to offer a compact, high-performance solution for medium-wave infrared (MWIR) imaging systems. These lenses are specially designed to maintain image quality while providing continuous zoom capabilities, enabling users to dynamically adjust the field of view. The cooling system enhances the thermal sensitivity and clarity of the lens, making it ideal for high-performance applications in various challenging environments.
With a robust design and exceptional optical characteristics, these lenses are perfect for a wide range of thermal imaging needs, from military surveillance to industrial inspections and scientific research.

Key Features
- Catadioptric Design: Combines mirror and lens elements for compactness and high optical performance.
- Continuous Zoom: Allows smooth and accurate zoom adjustments, providing versatility in a wide range of imaging applications.
- Cooled Optics: Optimized for use with cooled infrared detectors, improving sensitivity and thermal imaging performance.
- High Resolution: Pixel resolutions of 640×512 ensure clear and detailed thermal images.
- Durability: Designed to withstand harsh environments, ensuring reliable operation over long periods.
Applications
- Military & Defense: Ideal for surveillance, reconnaissance, and targeting systems where both wide-angle and zoomed-in views are essential for strategic operations.
- Industrial Inspection: Used for monitoring industrial systems, machinery, and electrical components, detecting temperature variations with high accuracy.
- Scientific Research: Suitable for applications requiring precise thermal imaging, such as environmental studies or material testing.
- Search and Rescue: Perfect for locating heat signatures in low-visibility conditions during rescue missions.
Available Models
| Model | FL max (mm) | FL min (mm) | F-No. | PX | PY | Pitch |
|---|---|---|---|---|---|---|
| ZF15300F4-615L | 300 | 15 | 4 | 640 | 512 | 15 |
| ZF15300F4-615S | 300 | 15 | 4 | 640 | 512 | 15 |
| ZF20420F4-615S | 420 | 20 | 4 | 640 | 512 | 15 |
| ZF20500F55-615 | 500 | 20 | 5.5 | 640 | 512 | 15 |
| ZF20550F55-615 | 550 | 20 | 5.5 | 640 | 512 | 15 |
| ZF23500F4-615L | 500 | 23 | 4 | 640 | 512 | 15 |
| ZF23500F4-615S | 500 | 23 | 4 | 640 | 512 | 15 |
| ZF23700F4-615L | 700 | 23 | 4 | 640 | 512 | 15 |
| ZF25600F4-615L | 600 | 25 | 4 | 640 | 512 | 15 |
| ZF30200F2-615S | 200 | 30 | 2 | 640 | 512 | 15 |
| ZF50200F2-615S | 200 | 50 | 2 | 640 | 512 | 15 |
Why Choose Our Optics?
Shape Optics offers Catadioptric Medium-wave Cooled Continuous Zoom Lenses that combine cutting-edge technology and high-quality optics to deliver outstanding performance in the most demanding environments. Whether you’re working in military applications, industrial inspections, or scientific research, our lenses provide the versatility, reliability, and performance you need.
With continuous zoom, cooled optics, and high resolution, our lenses help ensure that your system delivers the best possible thermal imaging results.
Ready to enhance your optical system? Contact us today to discuss the best lens for your specific needs.
