ASI290MM Mini (mono)

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$299.00

ZWO ASI290MM Mini is Available Now!!!

79 in stock (can be backordered)

SKU: ZWO ASI290MINI Categories: ,

Product Description

ASI290MM Mini camera integrates Sony IMX290 1/3″ sensor (5.6 mm x 3.2 mm). It is ZWO first mini camera. This camera has 1936 x 1096 pixels. The pixel size is 2.9 μm x 2.9 μm.  This camera provides 12bit ADC and its QE peak is over 80%.

asi290

Astrophotography Performance

ASI290 mini 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, we estimate the Peak Value is about 80%.

ASI290MM QE

290Mini vs. 290MM

Compared with ASI290MM camera, 290mini have smaller outlook, lighter weight, and it can reach focus at same position with eyepiece.

USB2.0Port & ST4 Port

USB 2.0 Port: Mini camera has one USB2.0 type C port. Type C port is very popular in mobile phones, it will not care about positive side and negetive side of the adapter.

ST4 Port: Can connect mini camera direct connect to auto guide port of mount.

 

Connecting DrawingMINI

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

Mechanical Drawing

What is in the box?

ASI mini camera box includes all necessary cables, adapters, and manuals.

174 290mini配件图

Drivers and Softwares:

Our website has newest camera drivers and many DSO and Planetary capture softwares. Please make sure the newest driver and software has been installed before you start shooting:

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

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ASI120, ASI174 and ASI290 mini camera have very beautiful outlooks, small size, lighter weight, this is not a big deal.

We should consider much more…

How to choose a good guide camera?

Many people may say : must be small, suitable for different equipments(guide scope, OAG), stable working.

Yes, I think thoes are basic demands for a good guide camera, and ASI mini camera can do them well.

So, what else we do care in the deep of our mind?

I think there will be three potential requests: high sensitivity, precisely guiding, big FOV.

ZWO-ASI-guide-cameras

High Sensitivity

Sensitivity is the first thing we considered. It is very important to look for a guide star. So, at beginning, we were considering to use mono sensor to design our guide camera only. Because mono sensors have much higher sensitivity than color ones. Luckily the ASI120MM Mini, ASI290MM Mini and ASI174MM Mini all have very high QE peak value – about 80%, which can detect more stars in view and shorten the exposure time in guiding.

Entry Level

ASI120MM Mini

ASI120MM Mini is designed for newcomers, which is more affordable than ASI290MM Mini and ASI174MM Mini. You can easily get the well-sampled stars with the help of ASI120MM Mini. It’s light, compact and robust. If you are still wondering which one you should choose as your first guide camera, the ASI120MM Mini can always be a good choice. 

Precisely Guiding

290mini

ASI290MM Mini is designed for precisely guiding. The 2.9um pixel size can give you a higher arcsec/pixel than 224 or 120 camera. Which means in same guide scope, 290mini can detective slighter movement of stars. ASI290 mini can improve about 30% guide precision than 120mm.

Big FOV

174mini

ASI174MM mini is designed for Big FOV guiding. This is very useful in OAG to looking for a guide star. When you use OAG guider working with Ritchey-Chretien or Schmit-Cassegrain telescope, the hardest part is to looking for a guide star. ASI174 mini have 1/1.2″ big sensor which means you can have a 4 times bigger Fov than 120mm.

Smiling Face

ZWO-ASI-guide-cameras-2

The back of ASI mini camera is like a smiling face, its mouth is Type C USB port, which is widely used in mobile phones. And its nose is the ST4 port, for guiding. Every time, you use mini camera, there always will be a smiley face stay with you in the dark nights.

Focus like a eyepiece

ASI mini camera can focus at same position as eyepiece. You can focus with a eyepiece, and put ASI mini camera into 1.25″ holder.

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Work with OAG

Mini camera is very suitable for OAG, it can have much biger focus range than normal ASI cameras. Never to worry about that guide camera can not focus with main camera at same time.

OAG

Work with CS adapter and CS lens

P1040896Work with 1.25″ extender

P1040899ASI mini camera is available now! You can buy it form us or our dealers! Wish you all have clear skies!

Review:

https://www.cloudynights.com/topic/589232-zwo-290mm-mini-guidecam-beta-test-thread/

Sensor: 1/2.8″ CMOS IMX290/IMX291
Resolution: 2.1Mega Pixels 1936×1096
Pixel Size: 2.9µm
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: 8.5mm
Shutter Type: Rolling Shutter
Protect window: AR coated window
Operating System Compatibility: Mac, Windows, Linux
Interface: USB2.0
Bit rate: 12bit output(12bit ADC)
Adaptor:1.25″ / M28.5X0.6
Dimension: φ36mm X 61mm
Weight: 60g or 3.1 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%
Supported resolution

USB2.0 MAX FPS
1936×1096: 20.4
1280×960: 35.3
640×480: 141.5
320×240: 355.9
2X2Bin :968×548: 20.4

More resolutions can be user defined

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
  • Fast Shipping(amount < 199USD) : $20.00 (We do not provide free shipping from now on.)

If you can’t get the air mail package after 2months, please let us know ASAP: info@zwoptical.com

Introduction

  1. Fast Shipping: we will choose DHL, UPS, FedEx etc to deliver it. Usually you will get your package within one month.
  2. Customers from Brazil and Chile should leave a message to provide your CPF or CNPJ as your custom needs it.
  3. Customers from Russia need to provide the complete English name with three words as well as the English shipping address.

Tracking site

DGM: http://webtrack.dhlglobalmail.com/?locale=en-US

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: info@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.

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

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

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    ASI290mini What is the square port for on the back of the camera?




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      The square port is ST4 guiding port.




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    Do you sell the 1.25″ extender by itself ?




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      Sorry, we do not sell the 1.25″ extender by itself, but it will come with the ASI290MM Mini.




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    Hi,
    I’ve had my ASI290MM Mini for over a year now, but until now I didn’t have any time to actually use it. Now that I’ve retired and have time to properly use it I have discovered that the camera has a problem. Every 8th column is dead. I noted this when I first got it but thought it was just a display artifact, but now I can examine it properly every 8th column has 0 counts. Other than that it seems to work well enough – so long as I position the guide star between the dead columns. What can be done about this problem? Is the chip defective and so needs to be replaced, or is there some tuning which can be done?




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      I am sorry for this, could you contact support@zwoptical.com and share the fit image to this email?
      We will take a further look at this. Thank you in advance!




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    What is the power consumption of the ASI290MM Mini, please? The specs don’t say.




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      0.3A




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      Around 0.3A




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    Hi Sean/Sam,

    I bought the following –
    ZWO 60280 Finder and Guide Scope
    ZWO 290MM mini mono

    With this combo I have learnt that I do not need any extension for focusing. Somehow I see no stars been focused. I have the camera all the way inside the guide scope. I also tried focusing using the rotate focuser. I am using PHD2+EQMOD+ASCOM for guiding using NINA. When I peek directly through the scope I see a distant tree very far(some 250 mm) from the end of the guide scope. Any idea?




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      I recommend you do the guide camera focusing in daylight, that will be easier.




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    Hi Sam, can this camera be attached to the EFW and if so what is the best way?Thankyou.




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      Why not choose ASI290MM?




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    Will the ASI290 mini work with the ASIAir module — the camera is only USB 2.0 and I heard that the ASIAir only works with USB 3.0 cameras -0- Thanks!




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      Yes, it is supported. USB3.0 cameras and Mini cameras.




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      It is supported. ASIAIR support all USB3.0 cameras and mini cameras.




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    Hi Sam and Sean,

    When for convienience I plug my ASI290mm-Mini into my ASI071-Pro USB hub (on the back of the 071) does it automatically slow the ASI071 down to usb 2 speed even though I have the 071 on a USB 3 cable to computer?




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      No, 071 will keep USB3.0 speed.




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    Very new to this guiding thing. I have done a lot of manual guiding with the prime being a 16″ F 4.5. My question is on focusing. I focus with an eyepiece, then I take the eyepiece out, and install the camera, and the camera will be in focus? Does it matter which eyepiece I use? Thanks.




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      If not focus, please add a 1.25″ extender(which in camera box)




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    Hi Sean,
    Thanks for your reply – I’m pleased to hear this. I also have to retract what I said about amp-glow in my 290MC-Cool; the other night I shot a series of 2 minute darks with the camera at -25C, and the residual amp-glow was so subtle I had to view the frames with log scaling and histogram stretching to see it. Perhaps I was using old software the last time… apologies. I’m saving my pennies for the 294MC for DSI on larger (20+ inch) telescopes, but also want to try the 290MM-mini as it turns out I don’t known an unfiltered sensor (nor a dedicated guider, other than my ASI120MC). Thanks!




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      Hi Chris
      290mini is much sensitive than 120mc and more precise(smaller pixel size), it will provide a new experience in guiding.




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    Hi Sean – “Ruben” asked in January if the camera employs amp glow reduction circuitry. I’m unclear about your answer. The IMX290LQR-C is the same chip as the IMX290LLR-C (mono version) , except that the mono version lacks a colour Bayer matrix on the pixels (which is entirely transparent > 850nm so here, both are effectively totally identical). The ASI290MC-cool I purchased from you a couple of years ago shows amp glow. Does this camera have circuitry to reduce amp-glow, even though it is intended mainly for guiding? If you wanted to take long exposures with it some cold winter night, would you see uncontrolled amp-glow or does it use similar circuitry to your bigger 290 cameras which should, by now, control amp-glow? – Thanks.




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      Hi Chris
      Yes, all our cameras employs amp glow reduction circuitry. reduce is not means disappear, the amp-glow still there, just less than without amp glow reduction. I don’t recommand to use 290 for long exposure, it isn’t as good as 1600 or other DSO camera.




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    Hi, can it be used with mini EFW as it is 1.25inch while EFW camera interface is M42 threads? Thanks




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      No, but EFW have 1.25″ holder, you may use 1.25″ interface to make connection.




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    Sean, thank you for your reply. Indeed it does depend on the QE, but it is tricky to assess this with relative instead of absolute QE curves. Nevertheless, an estimation can be appreciated.

    In the description for the 290m, you state “QE peak is over 80%.”. Therefore, if at 850nm the relative QE is ~0.5, then the absolute QE for the 290m at that wavelength should be ~40%.

    In comparison, in the description for the 224c you state “we estimate the Peak Value should between 75%-80%” If we also take 80% as best case scenario, then we can see that at 850nm, the relative QE is ~0.45, then the absolute QE for the 224C at that wavelength should be ~36%, which is slightly lower than the 290m.

    By the time we reach 1000nm, the extinction of the curve for the 224C finishes at ~0.1, whereas for the 290m, it finishes at ~0.15.

    Given the above, I can surmise that the 290m is actually slightly more sensitive in the IR range than the 224c.

    Thanks




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      Yes, add one explanation, mono camera is more sensitive than color camera( same chip model).




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    Hi, which of these two cameras is the most sensitive in the IR range (ZWO IR pass filter >850nm) for guiding: ASI224C or ASI290MM (mono)?

    Many thanks




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      Depand on QE curve, 224mc is more sensitive thant 290 in IR range.




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    What is the advantage of this new small form factor compared to the old one?
    What is the advantage of USB 2.0 compared to USB 3.0? USB 2.0 is slower than USB 3.0




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      Mini camera is designed to be a guide camera, the purpose is different.




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    If interested mainly in planetary imaging, this camera should do well? Not the frame rate performance of USB3, but enough frame rate to deliver excellent results?




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      Yes, You are correct. It can be used in planetary imaging, just a little slow than USB3.0 cameras.




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    Is there a specific work around using USB over CAT5 to get this as well as your other CMOS based cameras to work. Currently the 290 mini, nor the 174 mini will work on a usb over cat5 connection.




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      Yes, our camera support CAT5.




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    Hello:

    have this camera amp glow reduction?




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    • Sam Wen

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      the amp glow of this camera is very small




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    What is the back focus from the end of the adapter to the sensor?




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    When will the ASI-290MM Mini be back in stock?




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    • Sam Wen

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      it’s instock now




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