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The 121mm F1.2 infrared athermal lens is designed for superior long-range imaging in varying thermal environments. Its athermal properties ensure consistent focus and image quality without the need for manual adjustments, ideal for high-stakes applications such as military surveillance, border control, and critical infrastructure monitoring. To understand infrared athermal lenses better, get in touch with CNGEIR.
Focus Length (f) | 121mm |
Aperture (F) | 1.2 |
Spectrum | 8~12μm |
FOV | 7.3°X5.8° |
Coating | AR |
Transmittance | >88% |
Detector | 1280X1024(12μm) |
Focus Mode | Athermal |
Focus Range | 5m~∞ |
Rear Working Distance | 17.48mm |
Mount Type | M45×1.0 |
Size | φ110/L120mm |
Weight | 785g |
Working Temp | -40℃~60℃ |
Storage Temp | -40℃~80℃ |
IP Grade | IP67 |