ASI 290MC-Cool (color)


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SKU: ASI290MC-C Category:

Product Description

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Diagonal 6.46 mm (Type 1/2.8) Square Pixel Array Color CMOS Image Sensor

Back-Illuminated CMOS image Sensors with Improved Visible Light and Near Infrared Sensitivity that Support 1080p

Sony has developed the approx. 2.13M effective pixel back-illuminated CMOS image sensors IMX290LQR and IMX291LQR with improved sensitivity in the visible-light and near infrared light regions for industrial applications.
A new 2.9 µm-square unit pixel has been developed that combines a back-illuminated structure with technology for improving near infrared sensitivity to further enhance picture quality at low illumination while at the same time realizing Full HD cameras for industrial applications. This realizes two or more times the sensitivity in the visible-light region and three or more times the sensitivity in the near infrared light region than that of the existing Sony product (IMX236LQJ).

relative QE Curve


Read Noise

290 readnoise

This camera can run without external power supply in normal mode

here is a 60s dark frame

we recommends 12V at 2.5A or more DC adapter for cooler power supply(2.1*5.5, center passitive)


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 3ASI Cooled Cameras 5ASI Cooled Cameras 6ASI Cooled Cameras 7ASI Cooled Cameras 8ASI Cooled Cameras 9ASI Cooled Cameras 10ASI Cooled Cameras 11ASI Cooled Cameras 12ASI Cooled Cameras 16




Sensor: 1/2.8″ CMOS IMX290/IMX291
Resolution: 2.1Mega Pixels 1936×1096
Pixel Size: 2.9µm
Exposure Range: 32µs-2000s
Interface: USB3.0/USB2.0
ADC: 12bit
Dimension: 78 mm Diameter
Weight: 410g
Back Focus Distance: 17.5mm
Protect Window: AR coated
Cooling: Regulated Two Stage TEC
Delta T: 35-40 degrees C
Cooler Power consumption: 12V at 2A Max

Supported resolution

1936×1096: 20.4
1280×960: 35.3
640×480: 141.5
320×240: 355.9
2X2Bin :968×548: 20.4

USB3.0 MAX FPS(12bit/10bit)
1936×1096: 82.2/170
1280×960: 93.6/193.9
640×480: 184/381.2
320×240: 355.9/737.5
2X2Bin :968×548: 82.2/170

More resolutions can be user defined

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 question, answer or comment? Post here!

  1. :

    Darn. Ok I’ll have to save up.


  2. :

    Hey Sam! I was wondering what the best camera that creates clear high quality pictures of DSOs. The asi1600 is a bit much money. I wish the price was lower seeing all the amazing pictures taken with it. Anyways is there a camera that is extremely close to the 1600? Thank you!


    • Sean Wang


      1600 is the best DSO camera we have. there is not one can replace it.


  3. :

    When I originally commented I clicked the “Notify me when new comments are added” checkbox and now eachtime a comment is added I get three emails with the same comment.Is there any way you can remove me from that se?ikcerThanvs a lot!


  4. (verified owner):

    Hi again, Sam

    I’ve had a moment to carefully take some darks and biases to compare with the performance curves on the camera website (the page people are looking at), and the dark you provided ( With the sensor at -20C I used SharpCap2.9 to record 20 60s frames at a gain setting of zero, gamma/brightness/red/blue sliders all at “50” (neutral), averaged these in “siril” (linux “IRIS”, basically), and displayed both FIT files side-by-side in “ds9”, using log scaling and pushing the contrast/brightness equally.

    Your dark is quite clean and shows very very little “amp-glow” and few hot pixels.
    My attempt to duplicate this (same gain and temperature etc) show significant amounts of both.

    Any comment? Specifically, amp-glow control in my camera seems not to be in effect.


    • Sam Wen


      sorry for my later reply
      did you check the std value of your image?
      maybe smaller than ours

      this is because you cool it deeper than us and the dark current is so small cannot cover the amp-glow
      so the amp-glow looks more obvious


  5. (verified owner):

    Hi Sam,
    I answered my own question when I checked the driver settings. The white balance was not set to neutral, and blue pixels in my images (whatever the source of their signal) were being emphasized. From the header, your posted dark was made at low gain (3.58 electrons/ADU), so it would look very clean. This corresponds to a slider gain setting of “0”, referring to the curves you provide on this webpage. Unity gain (1 e-/ADU) is “110”. For my tests the gain was set to a slider setting of “300”.

    So, please ignore my previous question.


    • Sam Wen


      got it 😉


  6. (verified owner):

    Hi Sam,
    MaximDL, -20C – thanks.

    I note you’ve posted the same 60s dark for both the 290MM and 290MC. Of course, it should make no difference because the Bayer filters are irrelevant for darks. However: I have the 290MC-Cool, and I’m using SharpCap2.9 (latest) and the ASCOM driver for the ASI290MC-Cool (latest) and RAW16 .SER sequences of darks recorded at -25C (no light whatsoever) show gridding/waffling exactly as if I was looking at one channel of a Bayer image in an appropriate viewer. They also show some ‘amp-glow’, more than your posted July dark (at -20C). (The FIT header of your dark is also somewhat confused, in that NAXIS1 and NAXIS2 are the size of a 290’s pixel array (1936, 1096), but XPIXSZ and YPIXSZ are
    the values for the IMX224 sensor’s pixels (3.750000000 microns); the 290’s are 2.90000 microns square.
    The header does not specify 290MM, 290MC, or in fact the sensor used at all)

    Am I missing something? Did you use a 290MM or 290MC to create the dark posted on both the ASI290MM-Cool and ASI290MC-Cool’s webpages (not that it should matter)? Should I suspect SharpCap2.9 in somehow introducing gridding into data that should not contain it?

    Could you please post a 60s dark created with (specifically) an ASI290MC-Cool, for comparison.


    • Sam Wen


      there is no difference for the dark file between color and mono
      the pixel size should be error of old software, but the newest version should already fixed it

      is the gain setting the same for you which is zero?


  7. (verified owner):


    Thanks for the 60s dark. What was the sensor temperature for this dark?
    What application was used to take the dark?


    • Sam Wen


      you can get from the fit header, ASCOM driver is used


  8. :

    Astounding QE especially in the near-infrared. How is this camera for “amp-glow”?
    Is there a 60s dark you could share, for example?



    • Sam Wen


      just uploaded it
      you can find the link in the description


  9. :

    Is the camera less sensitive than the asi224mc or its about the same ?


    • Sam Wen


      I think sensitivity is the same



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