ZWO ASI174MM The ASI174MM is an uncooled monochrome astronomy camera built around the Sony IMX174LLJ. Its 11.3 × 7.1 mm sensor records 1936 × 1216 pixels with 5.86 µm sampling.
Manufacturer model: ZWO ASI174MM · Specifications checked against manufacturer data on 2026-11-03
The ASI174MM is an uncooled monochrome astronomy camera built around the Sony IMX174LLJ. Its 11.3 × 7.1 mm sensor records 1936 × 1216 pixels with 5.86 µm sampling.
Global-shutter capture
The manufacturer specifies a 12-bit ADC, 32,000-electron full well, 77% peak quantum efficiency and read noise of As low as 3.5 electrons. Capture speed is 128.2 fps at 12-bit; 164.5 fps at 10-bit. Smaller regions of interest can increase frame rate; speed depends on ADC mode, output format, exposure and connection. The global shutter exposes the frame simultaneously, reducing rolling-shutter distortion during motion.
Applications
Monochrome capture supports luminance and filtered imaging. Use suitable external filters to select the wavelength range for lunar, planetary or specialist imaging.
Connections and spacing
The USB connection supplies power and transfers images. The camera uses a M42 × 0.75 interface, with 6.5 mm bare; 17.5 mm with 11 mm ring sensor spacing. Its AR-coated window protects the sensor. The body is 62 mm in diameter and weighs 140 g. Match optical adapters and any external filter to the required telescope spacing.
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.
Additional specifications
ADC modes
12-bit normal; 10-bit high speed
46787
Scheda tecnica
ADC (bit)
12
Diametro del corpo (mm)
62
Filettatura camera
M42 × 0.75
Modalità colore
Monochrome
Raffreddata
No
Intervallo di esposizione
32 µs–300 s
Full well (e⁻)
32000
Interfaccia
USB 3.0; USB 2.0 compatible
Frequenza massima dei fotogrammi
128.2 fps at 12-bit; 164.5 fps at 10-bit
QE massima (%)
77
Dimensione pixel (µm)
5.86
Alimentazione
USB powered
Finestra di protezione
AR-coated window
Rumore di lettura (e⁻)
As low as 3.5
Risoluzione (px)
1936 × 1216
Sensore
Sony IMX174LLJ
Back focus del sensore
6.5 mm bare; 17.5 mm with 11 mm ring
Dimensioni del sensore (mm)
11.3 × 7.1
Otturatore
Global shutter
Software
Windows; Linux; macOS with compatible ZWO drivers/software
Porta di guida ST4
Yes
Peso (g)
140
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ZWO ASI174MM The ASI174MM is an uncooled monochrome astronomy camera built around the Sony IMX174LLJ. Its 11.3 × 7.1 mm sensor records 1936 × 1216 pixels with 5.86 µm sampling.
Manufacturer model: ZWO ASI174MM · Specifications checked against manufacturer data on 2026-11-03
