ASI294MM Pro

$1,480.00$2,249.00

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SKU: ZWO ASI294MM-P Categories: ,

Product Description

294mm parameters

By popular demand, we now introduce the ASI294MM Pro. This is the monochrome version of the ASI294MC Pro – one of the top selling cameras from ZWO. Some of the highlights include:

  • Back-illuminated sensor – improving sensitivity and reducing noise
  • 4/3” format with 4.64 um pixel size – ideal for many types of telescopes
  • 14-bit ADC – giving a high dynamic range
  • An impressive 66ke- full well capacity- helping to reduce the issue of for example saturated stars
  • 4144*2822 high resolution – with the Bin1-mode the camera can operate at a resolution of 8288*5644 and pixel size of 2.3 um.

On top of this, not only does it have a very high QE-value with a peak at about 90%, but also feature an ultra-low readout noise of 1.2e. If you are looking for a small-format monochrome camera for astrophotography, you can’t go wrong with the ASI294MM Pro.

ASI294MM Pro - 2

14-bit ADC and 13stops dynamic range

ASI294MM Pro has very similar parameters as its color version. Both have the 14bit ADC and a high dynamic range of 13 stops, which is even higher than that of the well-known and celebrated ASI1600MM Pro camera.

ASI294MM Pro - sensor

Backlit Sensor

Sony’s back-illuminated CMOS image sensor improves the sensitivity and noise reduction – the key factors to enhancing image quality. It does this by radically realigning the fundamental pixel structure from front-illumination to back-illumination, while still retaining the advantages of CMOS image sensors such as low power consumption and high-speed operation.

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. A back-illuminated structure minimizes the degradation of sensitivity to the optical angle response, while also increasing the amount of light that enters each pixel due to the lack of obstacles such as metal wiring and transistors. These components have been moved to the back-side of the silicon substrate.

Camera Performance

Large well depth capacity, low read-out noise and high dynamic range.

The full well capacity of 66387e of ASI294MM Pro is near the top of all ASI DSO cameras. It ensures a very high dynamic range of up to 13 stops that will greatly reduce the issue of overexposed images and also help to collect richer color information.

When the gain value is set to 120, the HCG high gain mode is turned on. We’re not saying it’s magic…but we’d like to think it is pretty close. With the HCG-mode turned on, the readout noise is greatly reduced, and the dynamic range is basically unchanged.

294MM_FW_EG_DR_RN

Unlocked Bin1 Mode

Yet another perk of the ASI294MM Pro is that the pixel size is switchable – the default setting is Bin2, but you can switch to Bin1 anytime in your astrophotography software. This changes the pixel size into 2.3um and increases resolution to 8288×5644. This is what we called “Unlocked Bin1 Mode”. The ability to unlock bin1-mode was a popular request from our customers. Of course we listened to you and worked quickly to make it possible.

294MM-P-Bin-1

 

Remember that using Bin1-mode will decrease the full well capacity compared to the standard bin2-mode.

Unlocked Bin1: 12bit ADC, 2.3um pixel size, 47 megapixels, 8288*5644 resolution, 14k full well capacity.
Bin2: 14bit ADC, 4.6um pixel size, 11.7 megapixels, 4144*2822 resolution, 66k full well capacity.

You can learn the more differences between unlocked Bin1 and Bin2 modes by comparing the performance charts.

294MM-P-bin-2

If the sampling accuracy you get with the 2.3um pixel size falls within a reasonable range, then the unlocked Bin1 mode will help you get more object details. However, you will lose dynamic range and ADC bit depth. Also the image files you get at Bin1 will probably be around 4 times bigger than Bin2.

So in the end the unlocked Bin1 mode is double-edged, you may choose to use it or not depending on the specific circumstances during your imaging sessions.

Reliable Mechanics

There are four screws on the camera that seal the sensor chamber. This kind of design has been extensively tested and is very stable and secure. Even when used in higher humidity environments, ASI294MM Pro will still work fine without dew problems.

Reliable Mechanics

QE Value

As ZWO’s latest BSI (backside illuminated type) monochrome camera, ASI294MM Pro has a very high QE performance, not only higher than its color version, but even than that of ASI1600MM Pro. It is estimated that the QE peak value is about 90%.

官网尺寸——294mm-p与1600mm-p QE对比

ASI294MM Pro vs ASI1600MM Pro

ASI294MM Pro vs ASI1600MM Pro

Two-Stage TEC Cooling: Ultra-Low Dark Current

Thanks to the two stage TEC cooling, ASI294MM Pro can lower the CMOS sensor temperature to more than 35 degrees Celsius below ambient temperature, which can greatly reduce dark current generation and sensor noise even during extended exposure times.

*The Delta T 35℃ is tested at 30℃ ambient temperature. It might get down when the cooling system is working for a long time. Also, as the ambient temperature falls, the Delta T would also decrease. 

The unique dark current suppression technology can further reduce dark current noise. When it’s cooled to -20℃, the current noise can be as low as 0.0022e/s/pix, which is completely negligible!

 

 

DCvsT-294MM_20200811

Please notice that the camera needs to be connected to an external 11-15v power supply to implement the cooling function. We recommend you use 12V@3A DC adapter (5.5*2.1mm, center pole positive) or lithium battery with 11-15V to power the camera. If you don’t have one, please click this link to buy a 12V power adapter. There are 4 different standards for different countries, please make sure you selected the correct adapter when placing the order.

https://astronomy-imaging-camera.com/product/acdc-adapter-12v-5a-for-cooled-cameras

 

USB3.0 & 256M DDR3 Memory

The ASI294MM Pro is equipped with a USB 3.0 transmission interface and a built-in 256MB (2Gb) DDR3 cache to ensure stable and secure data transmission. Under long exposure, it effectively avoids frame dropping and greatly reduces the glow effect caused by slow reading speed.

DDR

Notice: To learn how to tackle possible amp-glow that shows in your images, please refer to this tutorial: “What is Amp-glow and how do I manage it? “

https://astronomy-imaging-camera.com/faq

Mechanical Diagram

Mechanical Diagram - ASI294MM Pro

What’s in the box?

深空相机1-英

 

 

The best solution of 55mm back focus length

 

Cooled-Color-Camera-solution Cooled-Color-Camera-with-OAG-solution

We know that connecting new equipment can be daunting at first, so to help you out we have made tutorial on detailed connection methods of ASI294MM Pro. Just click the link below:

Read more: https://astronomy-imaging-camera.com/tutorials/best-back-focus-length-solutions-55mm.html

Our website is always updated with the most recent camera drivers as well as software for DSO and planetary imaging. Please make sure the most recent driver and software has been installed before you start shooting:

It is also recommended to read the Manuals first before shooting.

Do you have question, answer or comment? Post here!

  1. Avatar

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    I’m looking into integrating this camera into an instrument on a telescope. It would be helpful to have a 3D model to check the fit of the camera. I can Make my own from the available dimensions of course but was hoping that there might be an official one available.

    Thanks!




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    Does the camera have an internal dew heater? And can it be activated through 3rd partie software (Nina)

    Thanks




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      No, the camera does not have an internal dew heater.




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    I plant to buy this camera.
    Also have a Sky-Watcher Evostar 80Ed (600mm), which filter can I use for this set-up, the 1.25″ or the 2″?
    I am a newbie in this kind of photography




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      If your telescope is >F7.0, you can use 1.25″.
      2″ is suitable for all.




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    I would like to know the fps at the full resolution of ASI294MM when using ASI CAP software. Can you add fps data for video capture?




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    Dear ZWO
    How much time expected for the delivery? I want the asi294mm pro ?




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      Happy New Year
      We will take spring holidays from 2 / 9 to 2 / 19




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    Are there any immediate plans to offer 294mm Pro Filter wheel/filter combos? Right now that’s really the only thing holding up my purchase. I don’t have a 1600 or filter wheel, and would rather buy the better camera now. Thanks.




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      There is no such plan for now. You can buy separately.




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    Does this camera have an anti-reflective coating on the glass in front of the sensor, to avoid reflections like the asi1600mm had?




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      Hello
      294MMP come with the AR protect window




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    Why does the manual says the camera has a IMX294 sensor, but this page says IMX492 ?

    From the manual :

    There are 2 types of ASI294 cameras:
    Models Mono or Color Regulated TEC Cooling Sensor
    ASI294MC Color No Sony IMX294
    ASI294MC Pro Color Yes Sony IMX294




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      Sorry for the trouble, we have updated our manual.




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    Hi, I

    I am using ASI1600MM-Cool (not the pro version) for my imaging along with my WO GT 71 and EdgeHD 8. As I feel that ASI1600MM-C is not sensitive enough to capture the fine details now I am thinking about an upgrade. I also want to keep my subs around 5 mins or less due to the limitations caused by the weather condition and the mount. So, will this ASI294MM Pro gives me a significant improvement for me in both usual 2×2 binned mode and newly unlocked unbinned mode? Is it a worthwhile upgrade for me?

    Thank you




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      Yes, it is.




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    Please reduce the price of this monochrome version. It is almost 500$ higher than the OSC version. Why is this much difference? Even the QHY version is 200$ cheaper.




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      You can pay attention to our promotion announcement.




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    One more question, will 1.25” filter and telescope with F Ratio of 4.9 be compatible with ASI294MM?




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      We recommend 31mm or 36mm filter.




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    Does this camera have anti dew heater built into the camera?

    Can the anti dew be switched on and off in AsiAir pro?

    If you can tell me then that would be great, I need to know if I need to order external anti dew heater (the one that sticks in the front).

    Thank you.




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      There is no anti dew heater in this camera and you don’t need to buy an external one because it is this camera designed for.




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    Hi, I have an ASI 294 MM Pro. When I open it with ASI Studio V1.3.1, it says that the resolution is 8288 x5644 bin 1. I thought the resolution was 4144 x 2822. Does this mean that the camera now has an “unlocked” mode allowing me full resolution?




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      Yes, new ASI Studio provides unlocked bin.




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    Hi, Can I connect my USB 3.0 guide camera to the USB 2.0 Hub on the ASI 294MM Pro camera?




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      Yes




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    Hi! 36mm or 2″? which filters should I get to use this camera on f/ 3.9 newt? Thanks!!




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      36mm with 294MM-P is F1.3,2” with 294MM-P is not compatible.




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    I was considering ASI1600MM Pro Kit, then I saw this new ASI294MM Pro. If my math is correct, the ASI1600MM Pro Kit is 250 to 300 dollars cheaper than buying the camera and EFW and filters separately. I wish there are similar deals for other camera+EFW+filters bundle such as this ASI294MM.




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      Sorry, this camera is our new product, we do not plan to relesse ASI294MM-P kit.




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    (verified owner):

    Latest ASI Cameras ASCOM driver support ASI294MM ?




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      Yes, it supports ASI294MM.




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    hello im new to Astro and thinking of buying this product. Is there a compatible filter wheel for this camera?




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      Hi Matthew,
      Filter whell 36mm, 31mm, 1.25″ are all compatible with this camera.




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    Could you tell me what would be the delivery time of this camera for Spain.
    Thank you.




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      Hi Jose,
      It is in stock with a small quantity, it usually takes around 7-10days to reach you;-)




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    Hi, I would like to use Nikon mount lenses with this camera, with 2 inch filters in a filter drawer. What parts will I need?
    Thanks!




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      Sorry we don’t have a suitable adapter to connect Nikon lenses with filter drawer.




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1. ZWO will provide a 2-year free warranty service (Warranty Period) for ZWO products purchased by Users from ZWO (“Products”) in accordance with this Policy, commencing on the day following receipt of the Products by Users. For ASIAIR Plus users, commencing on the day of device activation.

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