QSI 726
Starting Price: $4,092.00
Price as Configured: $4,092.00
Price as Configured: $4,092.00
Brand: QSI / SKU: QSI-726
The QSI 726 is the optimal camera for most astronomical telescopes, offering exceptional performance in a compact design. Featuring the 28mm diagonal IMX571 sensor, it captures the sharpest parts of your telescope’s image, with reduced sensitivity to coma and vignetting compared to larger sensors. This makes it ideal for delivering high-quality results with a wide range of setups.
Like its flagship sibling, the QSI 760, the QSI 726 reduces cable clutter with an integrated 36mm filter wheel, 2 USB2 inputs, and a power-out socket. The threaded power sockets ensure maximum reliability, providing a stable, long-lasting connection for all your astrophotography needs.

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QSI CAMERA SPECIFICATIONS
QSI 760 | QSI 726 | |
Image Sensor | Sony IMX455 mono CMOS sensor | Sony IMX571 mono CMOS sensor |
Resolution | 9576 x 6380 | 6244 x 4168 |
Pixel Pitch | 3.76 µm | |
Sensor Size | 43.3mm diagonal (36mm x 24mm) | 28.3mm diagonal (23.5mm x 15.7mm) |
Full Well | 51,000 e- | |
Read Noise | 1.2 e- (typical) | 1.7 e- (typical) |
Set Point Cooling at ambient of 20°C | -25°C | |
Frame Rate | 2 FPS (Full Frame image) | 4 FPS (Full Frame image) |
Mount Type | M54 x 0.75 | |
ADC | 16 bit | |
Reading Mode | Rolling shutter | |
Exposure Range | 1 ms – 24 hours | |
Dark Current | 0.005 e-/p/s | 0.0008 e-/p/s |
Filter Wheel | Mechanical indexing for reproducible flats, Filterwheel for 2” or unmounted 50mm filters, 5 or 7 position | Mechanical indexing for reproducible flats, Filterwheel for 2” or unmounted 50mm/36mm filters |
Back Focus | 31mm (can be reduced by removing the adaptor (- 4mm) | |
Computer System Requirements | Windows 10+, Linux, USB 3.0, 8GB Ram, 64 bit Operating System | |
Accessories (optional) | Off-Axis guide unit | |
Weight | 1590g-1820g | 1590g |
Includes | Locking screws, INPUT & OUTPUT |