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ZWO ASI290MM Mini 2.1MP USB 2.0 Mono Guide Camera - ASI290MINI

4 In Stock - Ships Today if Ordered by 2pm! (Tues - Fri)

We will price-match Canadian astronomy dealer pricing

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Green Right Arrow ASI Guide Camera Selection Guide

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The ASI290MM Mini camera utilizes the Sony IMX290 1/3″ sensor (5.6 mm x 3.2 mm), with a 1936 x 1096 resolution (just over 2 megapixels). The pixel size is 2.9 um x 2.9 um.  This camera provides a 12bit ADC and it's QE peak is over 80%.


Astrophotography Performance

The ASI290Mini camera offers you very good performance for planetary imaging and guiding. Low read noise, high dynamic range, QE peak >80%, AR protective window and much more.

290 readnoiseHigh QE

Relative QE Curve, the Peak Value is about 80%.


290Mini vs. 290MM Cameras

Compared with the ASI290MM camera, the 290Mini has a smaller form factor, lighter weight, and it can be easily adjusted to be parafocal with eyepieces or other equipment

USB 2.0 Port & ST4 Port

USB 2.0 Port: The Mini camera have one USB 2.0 type C port. Never worry about which side up the cable goes!

ST4 Port: Connect your mini camera to your mount's auto guide port


Connecting Drawing企业微信截图_15349961443718

  1. M28.5-CS adapter
  2. CS-C adapter
  3. 1.25″ extender
  4. 1.25″ filter

Mechanical Drawing

What's in the box?

ASI mini camera box includes all necessary cables, adapters, and manuals to start using your camera

174 290mini配件图

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.

Questions & Answers

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