MWIR 3-5 um – cooled detector systems
18–275 mm Compact MWIR Continuous-Zoom Lens
Compact continuous-zoom MWIR reference with motorized focusing.
Full parameter record
18–275 mm Compact MWIR Continuous-Zoom Lens – published specifications
Every value below is the reference record for this configuration. Values marked as a reference, a target or a minimum are confirmed against the detector datasheet and the approved drawing before a quotation is issued.
| Parameter | Published value |
|---|---|
| Focal length | 18–275 mm |
| F/# | 5.5 |
| Working wavelength | 3–5 μm |
| Detector reference | 640 × 512 / 15 μm |
| Field of view | 29.9° × 24.1° / 2° × 1.6° |
| Average transmission | ≥90% AR reference |
| Distortion | 4.4% |
| Focus | Motorized, 50 m–∞ |
| Weight | ≤325 g |
| Dimensions | Φ62 × 75 mm |
| Operating / storage | −40 to +60 °C / −50 to +70 °C |
| Sealing reference | Front element IP67 |
Reference policy: the signed quotation, approved drawing, sample and inspection plan define the delivered performance, coating, sealing, MOQ and lead time. Values published here are engineering references for screening, not a guaranteed specification.
Before this configuration is released
What to confirm with us
Send these five inputs and the quotation can be prepared against your system rather than against a catalogue headline.
01Detector type, resolution and pixel pitch, including the cold-shield or cold-stop interface
02Required horizontal field of view, or the focal-length range and zoom ratio
03F-number, aperture envelope and the mounting interface on the host system
04Focus mechanism travel, control interface and the near-focus distance
05Operating temperature range, sealing target and the inspection documents required at release
Related references
Other configurations in the same family
- 15–300 mm MWIR Continuous-Zoom Lens
- 75 mm F/1 Manual-Focus LWIR Lens
- 25/50 mm Dual-FOV LWIR Lens
- 100 mm F/1.2 Athermalized LWIR Lens
Browse the full category page: Infrared Lenses.
Send the detector data and we will confirm the fit.
Share the detector type, resolution, pixel pitch, required field of view and the mechanical envelope. We will return the configuration route, the documents we can issue and the next sourcing step.