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
Datasheet
ADC (bits)
12
Behuizingsdiameter (mm)
62
Cameraschroefdraad
M42 × 0.75
Kleurmodus
Monochrome
Gekoeld
No
Belichtingsbereik
32 µs–300 s
Full well (e⁻)
32000
Interface
USB 3.0; USB 2.0 compatible
Maximale beeldsnelheid
128.2 fps at 12-bit; 164.5 fps at 10-bit
Piek-QE (%)
77
Pixelgrootte (µm)
5.86
Voeding
USB powered
Beschermvenster
AR-coated window
Uitleesruis (e⁻)
As low as 3.5
Resolutie (px)
1936 × 1216
Sensor
Sony IMX174LLJ
Backfocus sensor
6.5 mm bare; 17.5 mm with 11 mm ring
Sensorafmetingen (mm)
11.3 × 7.1
Sluiter
Global shutter
Software
Windows; Linux; macOS with compatible ZWO drivers/software
ST4-guidepoort
Yes
Gewicht (g)
140
Dit product gebruikt? Deel je ervaring met andere astronomen.
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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
