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ZWO ASI294MC 11.7MP USB 3.0 Color Astronomy Camera - ASI294MC

In Stock - Ships Today if Ordered by 3pm! (Tues - Fri)

FedEx Ground Order Cutoff is 11am


We will price-match Canadian astronomy dealer pricing

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The ASI294 is the first camera in the world that equipped with SONY's latest sensor, the IMX294CJK


ZWO has implemented this sensor with a diagonal of 23.2 mm (Type 4/3) and produces 11.71 megapixel images.


High-Sensitivity Type 4/3 CMOS Image Sensor, Supporting 4K for Astronomic Camera Applications

The IMX294CJK sensor is the first in-house image sensor for astronomic cameras to adopt the Type 4/3 format, and provides the resolution needed for 4K at 120 frame/s (in ADC 10-bit output mode, the ASI294MC can run up to 25fps at 4k format base on USB 3.0 bandwidth).

Exceptional low-illumination performance

Exceptional low-illumination performance (SNR of 0.14 lx) is realized by use of a large-size optical system and by expanding the area per pixel to 4.63 um. This makes the IMX294CJK an ideal sensor for astronomic applications requiring low-illumination performance.

14bit ADC & 13 stops DR

The ASI294 has a 14bit ADC and can achieve 13 stops dynamic range which is better than the performance of the ASI1600.

HCG Mode

The HCG mode will be enabled when gain is higher than 120 (12db) - the read noise will drop below 2e but keep the same dynamic range (13 stops).

294 Gain RN DR FW vs gain

Full well Capacity

This camera features a 63700e full well, which is 3 times the ASI1600’s capacity. Even bright stars won’t saturate under long exposure.

High QE

The IMX294 sensor is a BSI(back-illuminated type) sensor and has a very high QE (over than 75%).



USB 3.0 Port & ST4 Port


USB 3.0 Port: Provides 5Gb bandwidth to make it possible for the ASI294MC to run at 16 fps (14bit, normal mode) or 19 fps (10bit, high speed mode)  at full resolution(11.7 Megapixels).

ST4 Port: Connect to your mounts auto guide port


What's in the box?

The ASI294MC box includes all necessary cables, adapters, and manuals to start using your camera

1600 183 294非冷冻包装清单-1024x768

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: 4/3″ SONY IMX294 CMOS
Diagonal: 23.2mm
Resolution: 11.7Mega Pixels 4144X2822
Pixel Size: 4.63µm
Bayer Pattern: RGGB
Exposure Range: 32µs-2000s
ROI: Supported
Non-volatile memory/On camera storage: Build-in total 192K byte user-accessible space(image size up to 480X320)
Interface: USB3.0/USB2.0
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%
Max FPS at full resolution:
12Bit ADC
4144×2822 19fps
14bit ADC
4144×2822 16fps
More resolutions can be user defined

Questions & Answers

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