ZWO ASI992MM Pro SWIR

ZWO ASI992MM Pro SWIR

The ASI992MM Pro is a cooled monochrome short-wave infrared camera using Sony’s InGaAs IMX992 sensor. Its 0.4–1.7 µm spectral range extends beyond ordinary visible-light astronomy cameras into SWIR.

Sensor and sensitivity

The 8.942 × 7.093 mm sensor records 2592 × 2056 pixels with 3.45 µm pixels and a 12-bit ADC. ZWO lists 62.8 ke full well, 71-electron read noise, up to 70 fps and estimated peak QE above 80% at 1200 nm. These are ASI992 figures, distinct from the lower-resolution ASI990 and ASI991 models.

Cooling and transfer

Two-stage TEC cooling is specified at 35–40 °C below ambient in ZWO’s 30 °C test conditions. Zero amp-glow circuitry, a 256 MB DDR3 buffer and USB 3.0 connection support image capture.

Power and optical connection

Use a 12 V DC, 3–5 A supply with a 5.5 × 2.1 mm centre-positive connector, or an 11–14 V battery. The M42 × 0.75 connection provides 6.5 mm bare sensor spacing, or 17.5 mm with the 11 mm ring. Select optics and filters with transmission appropriate to the intended SWIR wavelength range.

ZWO manufacturer documentation

Compatibility notes

Use the exact named-model manufacturer connection and operating instructions linked with this product. Optional parts and adapters require their specified spacing and power limits.

Additional specifications