ASI 178MM-Cool (mono)


SKU: ASI178MM-C Category:

Product Description

Latest version



Our brand new cooled version of ASI178MM Monochrome Camera  allows the sensor to be cooled to 35C to 40C degrees below ambient!

Here is a 60s long exposure dark file of this Camera

Back-illuminated  CMOS Image Sensor with 14bit ADC.

ASI178MM has a 1/1.8″ and 6.4M pixels sensor IMX178 with SONY STARVIS and Exmor R Technology.


Extremely low read noise(2.2 e) , high sensitivity and 14bit ADC make it very suitable for astronomy and microscopy high resolution photograph.

178 Gain RN DR FW vs gain

This camera can run without external power supply in normal mode.

we recommends 12V at 2.5A or more DC adapter for cooler power supply.


What`s in the box?


Notice:Cooled cameras need a 12v power adapter, If you don’t have one, please click this link to buy a 12V power adapter. There are 4 different standard for different contury, please choose it carefully.

Drivers and Softwares:

Our website has newest camera drivers and many DSO and Planetary capture softwares. Please make sure the newest driver and software has been installed before you start shooting:


New accessory

And the anti-dew heater  is on sale that could solve the dew problem on the front window  for  ASI cooled cameras.

You can buy the heater from the link:


ASI Cooled Cameras 3

ASI Cooled Cameras 5 ASI Cooled Cameras 6 ASI Cooled Cameras 7 ASI Cooled Cameras 8 ASI Cooled Cameras 9 ASI Cooled Cameras 10 ASI Cooled Cameras 11 ASI Cooled Cameras 12 ASI Cooled Cameras 16

Camera technical details

Sensor: 1/1.8” CMOS IMX178
Resolution: 6.4 Mega Pixels 3096*2080
Pixel Size: 2.4µm
Sensor Size: 7.4mm*5mm
Diagonal: 8.92mm
Exposure Range: 32µs-1000s
ROI: Supported
ST4 Guider Port: Yes
Focus Distance to Sensor: 12.5mm
Shutter Type: Rolling Shutter
Protect window: AR clear window
Operating System Compatibility: Mac, Windows, Linux
Interface: USB3.0/USB2.0
Bit rate: 14bit output(14bit ADC)
Adaptor: 2″ / 1.25″ / M42X0.75
Dimensions: 78 mm Diameter
Weight: 410g
Back Focus Distance: 17.5mm
Cooling: Regulated Two Stage TEC
Delta T: 35-40 degrees C
Cooler Power Supply Required: 12V at 2A Max

Supported resolution

10bit ADC/14bit ADC
3096×2080 60fps / 30fps
2560×2048 62fps / 31fps
2048×1080 116fps / 58fps
1280×960 130fps / 65fps
800×600 204.7fps / 102.3fps
640×480 253.1fps / 126.5fps
320×240 479.7fps / 239.8fps

3096×2080 6fps
2560×2048 8fps
2048×1080 19fps
1280×960 34fps
800×600 89.5fps
640×480 253.1fps / 126.5fps
320×240 479.7fps / 239.8fps
More resolutions can be defined by user

Before first usage of this product read manuals and install correct drivers and software.


  • Fast Shipping(amount ≧ 299USD) for free
  • Fast Shipping(amount < 299USD) : $20.00
  • Free Shipping(amount < 299USD) (Air Mail, 3-4 weeks) (Free)


  1. Fast Shipping: we will choose DHL, UPS, TNT, EMS etc to deliver it. Usually you will get your package in one week. We provide free fast shipping for order ≧ $299 or charge extra $20 for order < $299.
  2. Free Shipping: we will ship via DGM or China Post Registered Air Mail. It usually costs 2-3 weeks to reach US or Europe and costs 3-4 weeks to reach far places.
  3. Customers from Brazil and Chile should leave a message to provide your CPF or CNPJ as your custom needs it.
  4. Customers from Russia need to provide the name of your company.

Tracking site:


China air mail:


  • The price list on our website is USD without tax.
  • Please note that buyers areliable to pay tax involved, such as Import tax, VAT , customs handling fee, etc. The additional fees may be collected at time of delivery by courier.
  • For best local service we advise customers buy our cameras form local dealers.

Warranty and Return Policy

  • We provide 2-year warranty for our products, we will offer the repair service for free or replace for free if the camera doesn’t work within warranty period. After the warranty period, we will continue to provide repair support and service on a charged basis.
  • This warranty does not apply to damage that occurred as a result of abuse or misuse, or caused by a fall or any other transportation failures after purchase.
  • Customer must pay for shipping when shipping the camera back for repair or replacement
  • If you get a faulty camera, please contact us as soon as possible though email: Please describe the problem in detail and we will do our best to help you solve the problem. Most instances perceived problems are simply bad driver install or software configuration.
  • For customers who bought the camera from our dealer, dealer is responsible for the customer service for you.

Do you have uestion, answer or comment? Post here!

  1. (verified owner):

    Is the camera C or T mount?
    Does the included 1.25 inch nosepiece have filter threads?

    • Sam Wen


      yes, the filter thread is M28.5X0.6

    • Sam Wen


      the camera body is T mount, but it come with a T-CS adapter
      the 1.25″ nosepiece has M28.5X0.6 filter threads

  2. :

    I see the list of resolutions, but are these binned or a subset of the full pixels?

    • Sam Wen


      that’s subframe
      hardware binning increase the fps too

  3. :

    Is the camera already filled with dessicant Tablets, or has it to be openend before first use.

  4. :

    Does it have autoguider port like the uncooled ones. Looking for an autoguider cam but don’t want to spend money on a “one purpose only” camera, this could do some neat DSO imaging when I get a nice big telescope to replace mt DSLR setup.

    • Sam Wen


      yes, it have autoguider port like uncooled ones
      this camera is exactly what you want 😉

  5. :

    ASI wanted to ask if the MM 178 refrigerated planetary photography no improvement in further reducing noise compared to that is not refrigerated.

    Thanks greetings.

    • Sam Wen


      cooling won’t help with exposure shorter than 1s

  6. :

    hi sam is this camera any good for dso please thanks

    • Sam Wen


      yes, but the pixel size is a little small
      so maybe better work with short focal length refractor or lens

  7. (verified owner):

    Wondering what you’ll suggest to control the amp glow – it is very bad with a 10-minute sub at -10C. I’m very disappointed and not sure if I can even resale this thing!
    P.S. if your answer is to take much shorter exposure (less than 5 minutes) then I think you SHOULD have listed that so I could simply pass this camera and safe me some $$$.

    • Sam Wen


      sorry, there is no way to control it
      the dark frame is already included in the camera description

  8. (verified owner):

    This camera has the worst amp glow I have ever seen and to reduce it I can only do 5-minute sub with no more than 38% gain.
    Thanks for the tip!

    • Sam Wen


      you should try our ASI224 or ASI174, then you will know what is worst amp glow 😉

  9. (verified owner):

    Technically yes, you did include a dark – only 60-sec. if like you said – there’s no way to control the amp glow at least I thought you should have mentioned that also in the description, yes? No?

    • Sam Wen


      I am sorry to say all our cameras have amp-glow, that’s why we provide dark frames for users to check

  10. :


    Do you have measurements of Dark Signal Noise of this camera?


    • Sam Wen


      it’s a little hard to measure as there is some auto clamp inside 178

  11. :

    Hi Sam.

    Do you have this product in stock now?

  12. :

    When are you ready?

  13. :

    Will the TEC work with a 12V 2A power supply or should I use something with a higher amp rating?

    • Sam Wen


      yes, it works, just don’t cool too deep to reach it’s max power consumption

  14. :

    Is it possible to set up an external trigger on this system?

    • Sean Wang


      For now, We can not do that.

  15. :

    Does the new version have removable nose piece so backfocus is reduced to 6.5mm?

    • Sean Wang


      Yes, you are right.

  16. (verified owner):

    hello Sam, the pixel’s size is a little too small but if i use bin2x2 the results will are goods ?

    • Sam Wen


      of course, binning help increase SNR
      this is a big advantage

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