The ZWO ASI Mini camera manual provides specifications, usage instructions, cleaning tips, and warranty information for the ASI Mini series.
This manual introduces the ASI Mini series of astronomy cameras, covering three variants (ASI120MM Mini, ASI290MM Mini, ASI174MM Mini). It details sensor types, image parameters, QE curves, readout noise, and hardware features such as the AR‑coated protective window and USB‑C interface.
Operational guidance includes how to connect the camera to telescopes or filter wheels, cleaning procedures for the sensor window, and after‑sales support. Warranty terms and service contacts are also provided.
| Sensor Type | 1/3" CMOS (ASI120MM), 1/2.8" CMOS (ASI290MM), 1/1.2" CMOS (ASI174MM) |
|---|---|
| Resolution | 1.2 MP (1280×960) / 2.1 MP (1936×1096) / 2.3 MP (1936×1216) |
| Pixel Size | 3.75 µm / 2.9 µm / 5.86 µm |
| Maximum Frame Rate | 35 FPS / 20.4 FPS / 18.4 FPS |
| Shutter Type | Rolling shutter (ASI120MM, ASI290MM) / Global shutter (ASI174MM) |
| Readout Noise | 4.0‑6.5 e‑ (ASI120MM) / 1.0‑3.2 e‑ (ASI290MM) / 3.5‑6.0 e‑ (ASI174MM) |
| Peak Quantum Efficiency | ≈80 % (ASI120MM, ASI290MM) / ≈78 % (ASI174MM) |
| ADC | 12‑bit (all models) / 10‑bit mode supported on ASI290MM and ASI174MM |
| USB Interface | USB 2.0 Type‑C |
| Dimensions | Ø36 mm × 61 mm |
| Weight | 60 g |
| Operating Temperature | -5 °C to 45 °C |
| Warranty | 2 years |
The camera works with Windows, Linux, and macOS.
ZWO provides a two‑year warranty with free repair service.
Connect the camera to a telescope, point it at a bright sky, use a barlow lens, adjust exposure to avoid over‑exposure, then blow off dust with air.
Yes, it is designed for guiding and can also be used for astronomical imaging.