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QHYCCD QHY290M Monochrome CMOS Telescope Astrophotography Camera - Planetary And Deep Sky

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The QHYCCD Small COLDMOS camera series includes all of our cooled cameras with BSI (back-illuminated) and FSI (front-illuminated) CMOS sensors in optical format sizes smaller than 1 inch.  These same sensors are also used in the uncooled QHY5III Series cameras.  However, as the name implies, the Small COLDMOS camera models include efficient TE cooling as well as other more advanced features not found on the uncooled models. 


  • USB 3.0
  • Regulated TE Cooling Delta -40C
  • 128 MB DDR Frame Buffer
  • ST-4 Compatible Guide Port
  • Filter Wheel Port
  • Anti-Noise Technology
  • Anti-AMP Glow Technology
  • Anti-Dew Technology

These additional features include a heated optical window to prevent external dew, a desiccant plug socket to help maintain a frost-free CMOS chamber, a 128MB frame buffer, a filter wheel port, and in the case of the QHY174M-GPS (Selected by the NASA New Horizon Team), an optional GPS timing module for highly accurate time stamping on individual frames.  Dual-stage TE cooling reduces the sensor temperature to -40C or more below ambient and temperature regulation maintains a constant temperature set point.  Due to the efficient TE cooling, single exposure times up to 30 minutes are possible on most models, making them suitable for deep space imaging of dim objects as well as brighter objects and planets. 

All of the Small COLDMOS cameras use Sony Exmor CMOS sensors.  Two models, the QHY178 and QHY290, use Sony STARVIS Exmor R back-illuminated sensors.  STARVIS is Sony’s designation for sensors capable of recording under starlight.  These sensors have improved sensitivity and noise reduction - the key factors to enhancing image quality, while radically realigning their fundamental pixel structure from front-illumination to back-illumination. It retains the advantages of CMOS image sensors such as low power consumption and high-speed operation while dramatically improving sensitivity.  With a conventional front-illumination structure, the metal wiring and transistors on the surface of the silicon substrate that form the sensor's light-sensitive area (photo-diode) impede photon gathering carried out by the on-chip lens, and this has also been an important issue in the miniaturization of pixels and widening optical angle response.

Returns Policy

You may return most new, unopened items within 30 days of delivery for a full refund. We'll also pay the return shipping costs if the return is a result of our error (you received an incorrect or defective item, etc.).

Items that have been opened, damaged or are otherwise unsaleable will be subject to a minimum 10% restocking fee, to be assessed by Telescopes Canada upon receipt of the returned goods

You should expect to receive your refund within four weeks of giving your package to the return shipper, however, in many cases you will receive a refund more quickly. This time period includes the transit time for us to receive your return from the shipper (5 to 10 business days), the time it takes us to process your return once we receive it (3 to 5 business days), and the time it takes your bank to process our refund request (5 to 10 business days).

If you need to return an item, simply login to your account, view the order using the 'Complete Orders' link under the My Account menu and click the Return Item(s) button. We'll notify you via e-mail of your refund once we've received and processed the returned item.


We can ship to virtually any address in the world. Note that there are restrictions on some products, and some products cannot be shipped to international destinations.

When you place an order, we will estimate shipping and delivery dates for you based on the availability of your items and the shipping options you choose. Depending on the shipping provider you choose, shipping date estimates may appear on the shipping quotes page.

Please also note that the shipping rates for many items we sell are weight-based. The weight of any such item can be found on its detail page. To reflect the policies of the shipping companies we use, all weights will be rounded up to the next full pound.

Typographical Errors and Order Cancellations

Telescopes Canada reserves the right to cancel an order due to an error in pricing by Telescopes Canada or one of our suppliers, equipment being no longer obtainable, or other events which are out of our control.

Client-Initiated Cancellations

Client-initiated order cancellations are accepted prior to delivery of the equipment to the customer, thereafter it is a return.
Sensor SONY Exmor R, IMX290 STARVIS Back-Illuminated CMOS, 1/2.8-inch
Effective Pixels 1920 x 1080   2 megapixels
Pixel Size 2.9um x 2.9um
Effective Area 5.6 x 3.1mm
Shutter Electronic Shutter
Full Well 15ke- Typical
Readout Noise 3.2e-@low gain    0.75e-@high gain
Frame Rate (at 8-bits) 135FPS@1920x1080   220FPS@960x540     460FPS@480x270
ROI Support Yes. Any Area ROI
Exposure Time 50us - 1800sec
AD Sample Depth 10-bit/12-bit (8-bit/12-bit output)
On Camera Image Buffer Yes, 128MB DDRII Buffer
Anti-amp light control Yes
Cooling 2-stage TEC, Typical -40C below ambient. Temperature Regulated
Power USB Powered for camera and +12V powered for TEC
Anti Frost Control Connector for removable silica gel tube
Anti Dew Control Heated optical window
Computer Interface USB 3.0 Super Speed
Telescope Interface M42/0.75 & 2-inch adapter. Optional C-mount adapter
Color Wheel Port 4-pin QHYCFW socket
Guide Port 6-pin RJ11 Guide Port
Optic Window AR+AR (Mono)    IR+AR(Color)
Weight  450g
Electrical Interface 12V input with locking ring, USB 3.0 socket, 4-pin QHYCFW, 6-pin RJ11


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