ASI 290MM (mono)


SKU: ASI290MM Category:

Product Description

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

What`s in the box?








Sensor: 1/2.8″ CMOS IMX290/IMX291
Resolution: 2.1Mega Pixels 1936×1096
Pixel Size: 2.9µm
Exposure Range: 32µs-2000s
ROI: Supported
ST4 Guider Port: Yes
Focus Distance to Sensor: 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)
Adaptor: 2″ / 1.25″ / M42X0.75
Dimension: φ62mm X 36mm
Weight: 120g or 4.2 ounces (without lens)
Working Temperature: -5°C—45°C
Storage Temperature: -20°C—60°C
Working Relative Humidity: 20%—80%
Storage Relative Humidity: 20%—95%

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 uestion, answer or comment? Post here!

  1. :

    When the cooled version will be available?

    • :

      Hi Bobo
      The cooled version will be available in May.

  2. :

    Hi, that is free shipping international?…

    • :

      Yes, it is . We provide free shipping for order above $300.

  3. :

    Hi Vanessa, I’m trying to pay with my credit card but not to this option for master card … can you help me… thanks

    • :

      Hi Juan, do you have paypal account?

  4. :

    Hi there, I’m looking for a cam for 1) moon (mosaic) (priority) and 2) planets. Ideally one cam for both. It is to be used with a Celestron C11. I understand that seeing limits the resolution (much more then diffraction) to something like an arc sec or two. Therefore sensitivity in IR is decisive as seeing can be reduced best filtering to infra-red. So it seems a play sensitivity vs resolution – I can alway magnify using a barlow lense. Within these constrain, I would like a maximal field of view to reduce the number of pics in a given mosaic.

    What is the optimal cam for that? 290M? For my purpose the cooled versions do not help. Right?

    Thanks for your help Lutz

    • Sam Wen


      ASI290MM is the best planetary imaging mono camera!

  5. :

    Hi! How to pay, if I dont have a paypal.

    • Sam Wen


      you can order from your local dealer too!
      if you don’t have a local dealer, you can order from our Aliexpress store with master card

  6. :

    Hi. What is included in the package? USB 3.0 cable, probably a lens (?), ….

  7. :

    Hi! The new ASI290MM cam or ASI174MM is better for lunar and solar imaging? Thank for the answer.

    • Sam Wen


      for lunar or solar only, I think maybe 174 is better for it’s global shutter

  8. :

    When will the camera be ready to ship? I don’t need the cooled version. Thanks!

    • Sam Wen


      there is only mono version with IMX290, we will have enough next week

  9. :

    — I meant to say that I’m specifically interested in the IMX291. Apologies for two questions.

  10. :

    I’ve got an ASI224MC
    For imaging IR, ASI290MM is better than 224?
    Thank you.

    • Sam Wen


      mono camera is always better than color in perfomance
      but it need filter wheel and filters

  11. :

    What is the estimated QE?


    • Sam Wen


      around 80%

  12. :


    What is the senor size in mm, i need the width and height?

  13. :

    Hi Sam, I know the chip in the 290MM is 6.46mm diagonal 1/2.8″, but what is the chip size in mm (H x W) for this camera? Thanks Mike

    • Sam Wen


      you can caculate in this way
      the resolution is 1920*1080 and pixel size is 2.9um
      so W x H is 1920*2.9 x 1080*2.9
      5.5mm x 3.1mm

  14. :

    Does the camera support true 2×2 hardware binning? If yes this would make a very good guide camera at long focal lengths!

    • Sam Wen


      no, only software binning which is better than hardware binning

  15. :

    Do you users that tried this camera for Solar H-Alpha imaging ?
    Solar Halpha imaging is very sensitive to newton artifact, I want to be sure to choose the right camera.

    I already have 2 ZWO camera 1600MC cool for deep sky and ASI224MC for planetary. I am very happy of both. fine design and stable driver.
    I need a third monochrome for guiding and if possible Halpha. Having a single driver is for sure an advantage.


    • Sam Wen


      Hi Erwan
      yes, you can use this camera for h-alpha imaging
      there are lots of users
      but we still got very few feedback that there is newton artifact
      you can use our T2-Tilter to remove it

  16. :

    I’m thinking about using this camera as my guiding camera. My setup consist of a Celestron OAG with the Edge HD11 scope. would this be a good camera to use? If not what would be the best camera to use for guiding in this setup?


    • Sam Wen


      yes, 290MM is very sensetive

  17. :

    Hello, when will it be available?

    • Sam Wen


      we will have vacation soon, so it will be available at middle of next month

  18. :

    Sam which one has the lowest amp glow – 178 mono or 290 mono? Thank you!

    • Sam Wen


      they all BI sensor, so amp glow is very like each other
      all very small, you can consider whose pixel size is more suitable for you

  19. :

    1. Is this non cooled camera OK for guiding purposes?
    2. Do you sell a guide scope to match? (a kit would be nice! :-)

    • Sam Wen


      you don’t need cooling for guiding
      our guide scope is out of stock

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