ZWO ASI294MC Pro The ASI294MC Pro is a cooled one-shot colour astronomy camera using the Sony IMX294 sensor. Its 19.1 × 13 mm imaging area records 4144 × 2822 pixels with 4.63 µm pixels and a native 14-bit ADC.
Manufacturer model: ZWO ASI294MC Pro · Specifications checked against manufacturer data on 2026-11-03
The ASI294MC Pro is a cooled one-shot colour astronomy camera using the Sony IMX294 sensor. Its 19.1 × 13 mm imaging area records 4144 × 2822 pixels with 4.63 µm pixels and a native 14-bit ADC.
Imaging performance
ZWO specifies 63,700 electrons full-well capacity, peak quantum efficiency of 75% and read noise of As low as 1.2 electrons. The listed capture rate is 19 fps at 12-bit; 16 fps at 14-bit full resolution; actual transfer speed depends on image size, ADC/output mode and USB connection. The colour sensor records colour in a single exposure sequence, supporting deep-sky imaging without separate RGB filter exposures.
Cooling and data transfer
Two-stage TEC cooling reduces thermal signal during long exposures. The manufacturer cooling specification is Two-stage TEC; 30–35 °C below ambient, tested at 30 °C ambient. A 256 MB DDR3 buffer and USB 3.0 connection support reliable downloads.
Connections and power
The camera connection is M42 × 0.75, with sensor spacing of 6.5 mm bare; add adapter thickness. The protective window is 32 × 2 mm AR-coated window. Use a 12 V DC, 3–5 A supply with a 5.5 × 2.1 mm centre-positive connector; the recommended battery range is 11–14 V. Include adapters and any filter wheel when calculating telescope backfocus.
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.
56499
Scheda tecnica
ADC (bit)
14
Amp glow
Present; calibrate with matched dark frames
Intervallo di tensione batteria
11–14 V
Diametro del corpo (mm)
78
Buffer
256 MB DDR3
Filettatura camera
M42 × 0.75
Modalità colore
Colour
Raffreddamento
Two-stage TEC; 30–35 °C below ambient, tested at 30 °C ambient
Intervallo di esposizione
32 µs–2000 s
Full well (e⁻)
63700
Guadagno HCG
120
Interfaccia
USB 3.0; USB 2.0 compatible
Frequenza massima dei fotogrammi
19 fps at 12-bit; 16 fps at 14-bit full resolution
QE massima (%)
75
Dimensione pixel (µm)
4.63
Alimentatore
12 V DC, 3–5 A recommended; 5.5 × 2.1 mm centre positive
Finestra di protezione
32 × 2 mm AR-coated window
Rumore di lettura (e⁻)
As low as 1.2
Risoluzione (px)
4144 × 2822
Sensore
Sony IMX294
Back focus del sensore
6.5 mm bare; add adapter thickness
Diagonale del sensore (mm)
23.2
Dimensioni del sensore (mm)
19.1 × 13
Otturatore
Rolling shutter
Software
Windows; Linux; macOS with compatible ZWO software/drivers
Peso (g)
410
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ZWO ASI294MC Pro The ASI294MC Pro is a cooled one-shot colour astronomy camera using the Sony IMX294 sensor. Its 19.1 × 13 mm imaging area records 4144 × 2822 pixels with 4.63 µm pixels and a native 14-bit ADC.
Manufacturer model: ZWO ASI294MC Pro · Specifications checked against manufacturer data on 2026-11-03
