ZEPHIR™​ 2.9 Infrared cameras, NIR / SWIR

ZephIR™ 2.9 is Photon etc.'s affordable scientific-grade SWIR HgCdTe (MCT) camera, highly sensitive from 0.85 to 2.9 µm. A four-stage TE cooler, deep-cooling at -80°C, provides unrivalled low-noise levels even at an astounding 340 frame-per-second rate.

  • 340 frame-per-second

  • 4 stages TEC

  • Low noise level

  • HgCdTe (MCT) FPA

  • 0.85 to 2.9 µm

Technical Specifications
Focal plane array (FPA) HgCdTe
FPA size (px) 320 x 256
Pixel size (µm) 30
Spectral range (QE > 10%) 0.85 - 2.9 µm
FPA operating temperature -80 °C
Dark current (sensor at -80 °C) Target at 21 °C: < 340 Mē/px/s
Gain setting (ē/ADU) High: 10.3 | Low: 216
Readout noise (ē) High: 150 | Low: 980
Digitization (bits) 14
Frame rate in CameraLink™ (fps) Up to 340 full frame. 2000 for a 64x64 px ROI
Frame rate in USB 3.0 (fps) Up to 340fps full frame. 2000fps for a 64x64 px ROI
Quantum efficiency Up to 85%
Computer interface CameraLink™ or USB 3.0
Dimensions 169 mm x 130 mm x 97.25 mm
Weight 2.6 kg


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By Simon Lessard and Laura-Isabelle Dion-Bertrand

Dark current is a critical parameter when one is looking to acquire a scientific imaging camera, especially in the short-wave infrared (SWIR) region. Very careful attention must be paid to the cooling method used to optimize this parameter. Multiple cooling technologies are available, each having certain benefits and drawbacks. In its new ZephIR line of SWIR cameras, Photon etc. uses a four-stage thermoelectric (TE4) air-cooled system to enhance the sensitivity of its imaging sensors. In this white paper, a short introduction to thermoelectric (TE) cooling is presented, as well as a comparison with other available cooling methods.


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ZephIR™ 2.9 Spec Sheet 123KB
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