ASI294MM Pro

$1,480.00

Available on backorder

SKU: ZWO ASI294MM-P Categories: ,

Product Description

294mm parameters

ASI294MM Pro is a back-illuminated, 4/3” format, 14-bit ADC camera with 4.63um pixels. It is the mono version of ASI294MC Pro, one of the top selling cameras from ZWO. It has an impressive 66ke- full well capacity and 4144*2822 big resolution.

Not only does it have a very high QE value with a peak at about 90%, but feature an ultra-low readout noise of 1.2e. If you are seeking for a small-format mono camera for astrophotography, then ASI294MM Pro gonna be your ideal choice.

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 ASI1600MM Pro camera.

ASI294MM Pro - sensor

Backlit Sensor

The back-illuminated CMOS sensor improves 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 has retained 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 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 that have been moved to the reverse of the silicon substrate.

backlit-sensor

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 up to 13stops that will greatly reduce overexposure probability and help gain richer color gradation.

When the gain value is 120, the magical HCG high gain mode is turned on, the readout noise will be largely decreased (as low as 1.2e), and the dynamic range is basically unchanged.

294MM_FW_EG_DR_RN

Unlocked Bin1 Mode

One thing about ASI294MM Pro which can be very special is that the pixel size is switchable – the default setting is Bin2, but you can switch to Bin1 anytime in your astrophotography software to change the pixel size into 2.3um. This is what we called “Unlocked Bin1 Mode”.

294MM-P-Bin-1

Unlocked Bin1: 12bit ADC, 2.3um pixel size, 47 megapixels, 8288*5644 resolution, 14k full well capacity.
Bin2 (The default mode): 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 into a reasonable range, then the unlocked Bin1 mode will help you get more object details. However, you will lose dynamic range and the bit depth of ADC. Also the image files you get at Bin1 will probably be 4 times bigger than Bin2.
So in the end the unlocked Bin1 mode is double-edged, you may choose to use it or not on your own.

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. 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) mono camera, ASI294MM Pro has very high QE performance, not only higher than its color version, but even 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

ASI294MM Pro uses two stage TEC cooling that can lower the CMOS sensor temperature to 35c~40c below ambient, which can greatly reduce dark current generation and sensor noise even with extended exposure times.

The unique dark current suppression technology can even 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.

 

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-buffer

Notice: For the possible amp glow that shows on 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?

what is in the box - ASI294MM Pro

The best solution of 55mm back focus length

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

Before first usage of this product read Manuals and install correct Drivers and Software.

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

  1. Avatar

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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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Shipping

It will take around 60-90 days for shipment via ePacket/China Post Registered Air Mail/EMS, which can’t be guaranteed due to force majeure.

  • Fast Shipping(amount ≧ 199USD) for free
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If you can’t get the air mail package after 2months, please let us know ASAP: info@zwoptical.com

Introduction

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China air mail: http://www.17track.net/en

 

Tax

  • The price list on our website is USD without tax.
  • Please note that buyers are liable to pay tax involved, such as Import tax, VAT , customs handling fee, etc. The additional fees may be collected at time of delivery by courier.
  • For best local service we advise customers buy our cameras form local dealers.

Warranty and Return Policy

  • We provide 2-year warranty for our products, we will offer the repair service for free within warranty period. After the warranty period, we will continue to provide repair support and service on a charged basis. We do not provide any replacement unless ZWO confirmed the product is DOA (Dead On Arrival).
  • This warranty does not apply to damage that occurred as a result of abuse or misuse, or caused by a fall or any other transportation failures after purchase.
  • Customer must pay for shipping when shipping the camera back for repair or replacement. If we confirm you can get a replacement, goods must be returned with all accessories, instructions, etc and must be suitably packed.
  • If you get a faulty camera, please contact us as soon as possible though email: support@zwoptical.com. Please describe the problem in detail and we will do our best to help you solve the problem. Most instances perceived problems are simply bad driver install or software configuration.
  • We will provide you RMA number if your camera requires warranty repair. We refuse any return without RMA number!
  • For customers who bought the camera from our dealer, dealer is responsible for the customer service for you.