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SBIG Aluma AC2020BSI Back Illuminated


Extreme sensitivity back-illuminated Scientific CMOS camera.  4 megapixel sensor with 6.5 micron pixels, Adaptive Optics capable, StarChaser Guider compatible.

Aluma AC2020BSI features a Windowless Class 1 sensor.

Fused silica chamber window is available with either VIS-NIR or UV-VIS optical coating options.

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Exposure 0.001-3600 sec
OS Compatibility Windows 7, 8, 10 x86/x64, MacOS 10.14 “Mojave” x86 binaries, Ubuntu 18.04 LTS x64, Raspbian Buster armhf, Ubuntu MATE arm64
Full Frame Download 0.1 sec
Weight 3.5 lbs / 1.6 kG
Filter Size 50mm Square
Read Noise (typ) 2 e- typical
Temperature Regulation Yes
Computer Interface USB 3.0
Power 12 VDC 8A
Cooling Delta ~ 40 °C typical, water cooling option included
Adaptive Optics Option AO-X with StarChaser SC-3
A/D Converter Dual 12 bit with HDR capability
Dark Current e-/p/s 0.16 e-/p/sec @ -20C
Full Well Capacity 55,000 e-
Sensor Size 13.3 mm x 13.3 mm
Imaging / Pixel Array 2048 x 2048
Shutter Rolling electronic, Mechanical dark shutter
Self-Guiding In Front of Filters Yes with StarChaser
Pixel Size 6.5 um
Total Pixels 4 million
Filter Wheel Option FW7-STX
OAG Option StarChaser
Imaging Sensor Gpixel GSENSE2020BSI
Chamber Window VIS-NIR, UV-VIS

Additional information

SBIG Photometric



Difraction Limited

Difraction Limited


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