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
Fiche technique
CAN (bits)
14
Amp glow
Present; calibrate with matched dark frames
Plage de tension batterie
11–14 V
Diamètre du boîtier (mm)
78
Mémoire tampon
256 MB DDR3
Filetage caméra
M42 × 0.75
Mode couleur
Colour
Refroidissement
Two-stage TEC; 30–35 °C below ambient, tested at 30 °C ambient
Plage d'exposition
32 µs–2000 s
Capacité de puits (e⁻)
63700
Gain HCG
120
Interface
USB 3.0; USB 2.0 compatible
Cadence maximale
19 fps at 12-bit; 16 fps at 14-bit full resolution
QE max. (%)
75
Taille des pixels (µm)
4.63
Alimentation
12 V DC, 3–5 A recommended; 5.5 × 2.1 mm centre positive
Fenêtre de protection
32 × 2 mm AR-coated window
Bruit de lecture (e⁻)
As low as 1.2
Résolution (px)
4144 × 2822
Capteur
Sony IMX294
Backfocus du capteur
6.5 mm bare; add adapter thickness
Diagonale du capteur (mm)
23.2
Dimensions du capteur (mm)
19.1 × 13
Obturateur
Rolling shutter
Logiciel
Windows; Linux; macOS with compatible ZWO software/drivers
Poids (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
