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QHYCCD QHY90A Cooled Monochrome CMOS Telescope Astrophotography Camera With Integrated Filter Wheel

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The QHY90A is an 8.6 Megapixel 4/3 inch astronomy CCD Astrophotography Camera. It uses the 4/3inch KAF-8300 CCD sensor which is so popular in many astronomical CCD Astrophotography Cameras.  This camera has a built-in 7-position filter wheel for 36mm unmounted filters for unvignetted fields even at f/2, and a butterfly style even-illumination mechanical shutter for photometric accuracy across the field of view. 

KAF-8300 - Popular Sensor

The KAF-8300 8.3 Megapixel 4/3 inch mono sensor is used in many astronomy camera models. 

"A" Series Camera - Fully Integrated

Both the QHY90A and IC90A belong to QHYCCD new "A" series camera family.  "A" stands for "ALL-IN-ONE".  The cameras include a built-in motor driven filter wheel and they natively support the QHYOAG.  The small size OAG can be installed on the camera solidly with six screws using a minimum of back focus, precious for some optical systems.  The filter wheel in the QHY90A/IC90A has a 7-position carousel for 36mm unmounted filters.  In addition to the filter wheel and OAG, these "A" series cameras offer an internal USB HUB(2.0) that provides two USB host ports and a USB to dual RS232 converter.  A guiding camera, mount and electric focuser can be connected directly to this camera instead of the computer to reduce cable clutter and the chance of signal loss due to the long cables. Only one USB cable is needed to control all the peripherals..  

Butterfly Shutter - long life and uniform illumination

This camera uses a mechanical shutter that has a butterfly shape. The shutter is directly driven by a motor with no other moving parts.  The working life is almost unlimited. The shutter has two sides that block light and open spaces in between.  The fan shape of the blades create even-illumination when opening, and even-darkness when closing for dark frames.  This feature is of great benefit when taking flat frames or making photometric measurements.  

Single 12V power socket

This camera uses a single 12V IN power port.  The power socket is threaded for a solid connection that will not accidentally disconnect.  There is another socket connected in parallel with the input that can be used to supply 12V OUT to other devices. 

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.
Model QHY90A
Sensor   KAF-8300 Full Frame CCD
Pixel Size 5.4um*5.4um
Resolution 3358(H)*2536(V)
Effective Pixels 8.6 Megapixels
Effective Image Area 17.96mm(H)*13.52mm(V)
Full well >25.5ke
AD Sample Depth 16-bit
Sensor Size Typical 4/3-inch
Readout Noise 9e-
Pixel Binning 1x1, 2x2, 4x4
Readout Type Progress Scan Readout
Exposure Time 1ms-10000sec
Cooling System Dual Stage TEC Cooler (-45C below ambient)
Shutter Type Butter-Fly Even-Illumination Long Life Mechanical Shutter
Internal Filter Wheel 7-position, 36mm unmounted filters
OAG Interface Six M3 thread 
Power Consumption 0% TEC  power 8w,  50% TEC power 16.5w ,100%TEC power 27 w
Color / Monochrome Monochrome Only
Build-in Anti-Dew Heater Yes
Telescope Interface M42/0.75
Back Focal Length 30mm(±0.5)
Weight 1335g

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