Cooled SWIR Monochrome Camera ZWO ASI991MM-P - InGaAs Sensor for Scientific Applications

The ZWO ASI991MM-P camera is a scientific SWIR (short-wave infrared) camera equipped with a 341,000-pixel (5 µm) Sony IMX991 monochrome CMOS sensor, optimized for various applications ranging from photometry to spectroscopy, including infrared imaging and optical communication. Thanks to its InGaAs (indium gallium arsenide) technology, this camera is sensitive to a wide range of wavelengths, from 400 nm to 1700 nm, and can capture images in low-light conditions, both day and night.

Characteristics:

• Sensor: CMOS SWIR Sony IMX991
• Sensor format: 1/4" (656 x 520 px)
• Pixel size: 5 x 5 µm
• Matrix dimensions: 3.2 x 2.6 mm (diagonal: 4.1 mm)
• Spectral range: 400 nm to 1700 nm
• Full well capacity: 127,000 e-
• Exposure time range: 32 µs to 2000 s
• Readout noise: 21.3 e-
• Interface: USB 3.0 Type-B SuperSpeed and 2x USB 2.0
• Cooling: Active, two-stage Peltier up to -35°C below ambient temperature
• Lens mount: Female M42x1 thread
• Back focus: 17.5 mm
• Dimensions: 78 mm (diameter) x 73.6 mm (height)

Advantages:

• InGaAs technology offering high sensitivity in the near infrared, ideal for low-light imaging and various scientific applications.
• Back-illuminated sensor improving light collection and reducing electronic noise for sharper and more accurate images.
• Active two-stage Peltier cooling to minimize thermal noise, essential for long exposures.
• Rugged design with extended connectivity, ideal for research and industrial environments.

Compatibility:

• Compatible with many astronomy and science software, such as ASIStudio, Prism, NINA, FireCapture, MaximDL, and more.

Tips and Tricks:

• Use a stable 12V power supply to maintain optimal active cooling performance.
• Ideal for scientific applications in spectroscopy, photometry, and optical communication in the infrared domain.

The ZWO ASI991MM-P camera is an exceptional choice for professionals and researchers requiring a high-quality solution for advanced infrared imaging applications.