ZWO ASI224MC USB3.0 Colour Astronomy Camera

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ZWO ASI224MC USB3.0 Colour Astronomy Camera

Brand: ZWO
$499.00 AUD

or 4 payments of $124.75 with Afterpay

Backorder (Availability can be less predictable during pandemic. Contact us if unsure.).

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ZWO ASI224MC – Extremely Low Noise with Superior NIR Sensitivity

ZWO’s ASI224MC one shot colour astronomy camera has some very noteworthy features. It uses a Sony IMX224 CMOS sensor with Exmor and NIR Technology. Read noise is extremely low while having amazing sensitivity in the near infrared. Fast USB3.0 speed makes it ideal for imaging Solar System and small DSOs such as planetary nebulae.

Super Low Read Noise less than 1e which can compare with sCMOS or EMCCD sensors

Many images of faint nebulae or galaxies require long exposure times, especially to bring out faint details. Digital sensors and processing software allows stacking multiple exposures. You often hear “..a stack of 6 x 10 minute exposures” giving 60 minutes total exposure.The big obstacle may be getting your mount to track precisely enough for 10 minutes.

Why not just take 60 x 1 minute shots? Or 120 x 30 second shots?  Or even 3600 x 1 second shots to get the same result.

The answer is read noise. Every time the sensor is read inherent uncertainty in the pixel values is included in the data – this is the “read noise”. Long exposures produce good signal with low read noise. Images with many short exposures include read noise from every subframe – so you don’t get the same result.

ZWO’s ASI224MC has very low read noise. So low in fact that it is becoming possible to thousands of short exposures and add them without a significant penalty in read noise. The age of “lucky imaging” is approaching.


ASI224 Read Noise

ZWO ASI224MC Specifications

Sensor 1/3” CMOS IMX224
Resolution 1.2Mega Pixels 1304X976
Pixel Size 3.75µm
Sensor Size 4.8mm*3.6mm
Diagonal 6.09mm
Exposure Range 32µs-1000s
ROI Supported
Binning 2×2 binning supported
Back focus distance 12.5mm
Shutter Type Rolling Shutter
Protect window AR coated window
Operating System Compatibility Mac, Windows, Linux
Interface USB3.0/USB2.0
Bit rate 12bit output(12bit ADC)
Adapter 2″ / 1.25″ / M42X0.75
Dimensions 62 mm Diameter
Weight 100g
Working Temperature -5°C—45°C
Storage Temperature -20°C—60°C
Working Relative Humidity 20%—80%
Storage Relative Humidity 20%—95%

Transmission characteristics of the ASI224MC’s bayer array

Sample images taken with the ASI224MC camera:

ZWO ASI224MC Mechanical Drawing

ZWO ASI224MC Mechanical Drawing

ZWO ASI 224MC Colour Camera
ZWO’s new ASI 224MC has a 1.2 Mega pixel sensor IMX224 with SONY Exmor and  NIR Technology.
The 2 particularly interesting attributes of this camera are:

  • Extremely low read noise (0.75e – 1.5 e) – this allows you to stack many short exposures without read noise adding significantly to the overall noise of the image.
  • High sensitivity especially in IR range – allowing the use of IR pass filters to minimise atmosphereic seeing problems.

Very suitable for astronomy and microscopy photography.

Note that spectral sensitivity is equal in RGB channels from ~830nm onward allowing the use of the ZWO IR850 IR pass filter to good effect.







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