Optical Property
| Focal Length | 25mm to 225mm | Calculated Average Transmission | >81% |
| F/# | 1.5 | Operating Temperature Range | -40℃ to +60℃ |
| Operating Wavelength Range | 8μm to 12μm | Minimum Focus Range | 0.3m /45m |
| Coating on Front Surface Exposing to Air | DLC | Distortion (Diagonal FOV) | <5% |
Mechanical Property
| Focusing Mechanism | Motorized | Installation Way | Flange |
| Weight | / | Flange Focal Distance | 20mm |
| Materials of Lens Housing | Anodized aluminium | Connector | Refer to drawing |
| Max. Dimensions (Diameter x Length) | ɸ194x237.58 | Sealing Grade | IP67 |
Electronic Property
| Zoom, Focus Mechanism | DC gear motor control | Zoom,Focus Position Feedback | Potentiometer |
| Zoom, Focus Driving Voltage | 12V DC |
FOVs and Detectors:
| FOV(H X V) | 640x480 | 1024x768 |
| 12μm | 17.4° to 1.9° | 27.6° to 3.1° |
| 17μm | 24.6° to 2.8° | 38.3° to 4.43° |
| 25μm | 35.5° to 4.1° |
Both this module and Hangzhou Shalom EO's 305-016 25mm f/0.85 to 225mm f/1.3 Continuous Zoom Lenses for LWIR Thermal Camera are compatible with HD(1280x1024)-12μm infrared detector, which delivers outstanding image details supporting broader FOV, longer distance, and offer excellent spatial resolution with the 12μm pixel size.
