Product Description
AR Protective Window


ZWO D21 AR protect window
Technical Parameter:
Diameter: 21mm
Type: AR window
Thickness: 1.1mm
Flatness: 1/4 λ
Protect the sensor from dust and humidity.
Match Model:
The cameras that come with the D21*1.1mm AR protictive window as list as below :
ASI120MM-S, ASI224MC, ASI385MC, ASI290MC/MM, ASI290MINI, ASI178MM, ASI462MC, ASI120MINI.
ZWO D25 AR protect window
Technical Parameter:
Diameter: 25mm
Type: AR window
Thickness: 1.1mm
Flatness: 1/4 λ
Match Model:
ASI174 series.
Protect the sensor from dust and humidity.
ZWO D32 AR protect window
Technical Parameter:
Diameter: 32mm
Type: AR window
Thickness: 2mm
Flatness: 1/4 λ
Match Model:
ASI1600 series, ASI294 series, ASI183 series.
ZWO D60 AR protect window
Technical Parameter:
Diameter: 60mm
Type: AR window
Thickness: 2mm
Flatness: 1/4 λ
Match Model:
ASI071 MC Pro,ASI6200MM Pro, ASI2600MM Pro.
UV IR-CUT Protective Window


ZWO D21 UV IR-CUT protect window
Technical Parameter:
Diameter: 21mm
Type: UV IR-cut window
Thickness: 1.1mm
Flatness: 1/4 λ
Match Model:
ASI120 series, ASI120-S series, ASI178 series, ASI290 series, ASI224MC series, ASI385 series, ASI185MC series.
Protect the sensor from dust and humidity.
The cameras that come with the D21*1.1mm IR protictive window as list as below :
ASI120MC-S, ASI178MC.
ZWO D25 UV IR-CUT protect window
Technical Parameter:
Diameter: 25mm
Type: UV IR-cut window
Thickness: 1.1mm
Flatness: 1/4 λ
Match Model:
It is used for ASI174MM ASI174MC ASI174MM-COOL ASI174MC-COOL to protect the sensor from dust and humidity.
ZWO D60 UV IR-CUT protect window
Technical Parameter:
Diameter: 60mm
Type: UV IR-cut window
Thickness: 2mm
Flatness: 1/4 λ
Match Model:
It is used for ASI6200MC Pro, ASI2400MC Pro, ASI2600MC Pro to protect the sensor from dust and humidity.
Shipping & Delivery
Fast Shipping: we will choose DHL, UPS, FedEx etc to deliver it. Usually you will get your package within 15-20 days.
- Fast Shipping(amount ≧ 199USD) for free
- Fast Shipping(amount < 199USD) : $30.00 (We do not provide free shipping from now on.)
Introduction
- 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. If you can’t get the air mail package after 2months, please let us know ASAP: info@zwoptical.com
- Customers from Brazil and Chile should leave a message to provide your CPF or CNPJ as your custom needs it.
- 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 from local dealers.
Warranty & Return
1. ZWO hereby declares that it will provide customers with a warranty period of 2 years for ZWO branded products (excluding APO), as per this policy. APO products will be covered by a 1-year free warranty service, starting from the day following the receipt of the product by the customer. For ASIAIR Plus users, the warranty period will commence from the day of device activation.
2. If a User encounters the following Dead on Arrival (DOA) and contacts ZWO within the corresponding time limit to issue the Product purchase invoice and relevant evidence, ZWO will provide door-to-door pick-up service and, as appropriate, after-sale replacement (or partial replacement), repair or return (or partial return) service for the following Products:
1) Product quality problem
Provided that a User detects a quality problem and contacts ZWO within 30 days after receipt of the Products, and ZWO support team confirms that the Products indeed have a quality problem or defect after their inspection, ZWO will provide free replacement service towards such Products;
2) Product transportation problem
Provided that a User finds obvious signs of bubbling, serious overstocking, or deformation on the outer package of the Products upon receipt of the Products, and provides ZWO with pictures of the outer package and proof of receipt within 3 days after receipt of such Products, ZWO support team will verify the actual shipper and determine the responsible party for such transportation problem. In the event that ZWO is the actual shipper, ZWO will be responsible for providing the relevant return or replacement service, however, if the Products are directly sold or transported to the User by an agent of ZWO, the agent will be responsible for providing the relevant return or replacement service.
3. If the Products are under the following circumstances, they are not within the scope of warranty service, ZWO may provide maintenance services to the Users:
1) The Warranty Period of the Products has expired; or
2) The Products are injected into liquid or affected by moisture or corrosion; or
3) The Products are damaged by an external force (such as the broken of the camera protection window glass, the deformation of the product shell, the broken of the USB port, etc.); or
4) Disassembling, repairing by a third party, refurbishment of the Products (such as downloading erroneous firmware) without the written authorization of ZWO; or
5) The product system is modified, or the maintenance notice is lost or changed; or
6) Product quality problem caused by installation not following the requirements or instructions for the Products; or
7) Physical damage or failure of the Products caused by the force majeure (such as strong vibration or extrusion such as flood, fire, earthquake, or thunder stroke); or
8)Damage caused by the improper User operation during the period of shooting or use, such as using without the equipment protection or direct shooting of the sun; or
9) No valid purchase invoice or warranty certificate; or
10) The Products are second-hand products.
Any quality problem with the accessories or other parts of the Products is not a condition for the return or change of the Products, and the User may solely request to replace the accessories with new ones, which shall be handled after verification by ZWO support team.
If the issue with your ZWO product was caused by certain damage (such as severe damage not covered by the 2-year warranty), you might have to pay the replacement value.
4. For the normal repair or replacement of the Products during the Warranty Period, the User will bear the return cost. When returning the Products, Users shall specify the actual reasons for the damage to the Products, and shall provide the corresponding valid certificates, such as pictures or videos, etc.
For the Products that need to be replaced after being confirmed by ZWO in writing, the User shall return the Products with the complete package, together with all accessories, manuals, etc., to the address designated by ZWO.
By sending back the product to ZWO, the User agrees to pay out-of-warranty fees that may arise during the repair process of the product. ZWO will send back the product after charging.
5. If a User encounters any problem during the use of ZWO Products, you may at any time contact ZWO for technical support via ZWO Support.
For the Products that need to be returned for after-sales service, ZWO will provide the corresponding RMA code for reference.
ZWO will not accept any products having no RMA code that have been returned privately without ZWO written confirmation.
6. If a User purchases the ZWO Products from a ZWO agent, the User may contact the ZWO agent directly for the relevant after-sales service.
Our website is continuously 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 have been installed before you start shooting:
It is also recommended to read the Manuals first before shooting.
Alex Weinstein – :
I have a 294MC-Pro that I bought in 2018, and I have an issue with the red channel with very narrow band filters. From what I understand, it is a coating issue with the glass in front. Would purchasing this fix that issue? I would love to use this for duo narrow-band imaging again but it is really hard to get a good image with a restrictive filter like an L-Extreme.
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chole le – :
Hello! We apologize for this inconvenience. Please contact our support(support@zwoptical.com). They have the expertise and resources to assist you effectively.
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Michel Brassard – :
Je vais changer mon filtre ZWO-D21AR, quel genre de colle dois-je utiliser? Silicone noir?
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chole le – :
Hello! Is your issue resolved? If not, please email us at support@zwoptical.com with further details. If your issue has been resolved or if you have any other questions, feel free to contact us anytime. Thank you for your support!
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Dominick – :
Hi, is it possible to install an IR cut inside the 533mc instead of just IR?
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chole le – :
Hello! Is your issue resolved? If not, please email us at support@zwoptical.com with further details. If your issue has been resolved or if you have any other questions, feel free to contact us anytime. Thank you for your message and support!
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Riccardo Sgaramella – :
Ho una 294 MC Color Pro, e dopo tante indaginj ho notato che il vetro protettivo non è perfettamente limpido e vorrei cambiarlo.
Ho un rifrattore e leggendo in giro vedo che consigliano un ir-cut per i rifrattori.
Vi chiedo cosa mi consigliate?
Se ce una scelta tra un AR e un UV/IR-Cut. Grazie
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chole le – :
Hello! Is your issue resolved? If not, please email us at support@zwoptical.com with further details. If your issue has been resolved or if you have any other questions, feel free to contact us anytime. Thank you for your message and support!
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Arafat – :
Which one to use for 533mc ?
I don’t see this camera mentioned here
Is it AR cut or IR cut ?
And which model?
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sara.liu – :
It is D32-2-AR, you can find it in the ‘Specification’ tab.
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Francesco Badalotti – :
I have the newest camera Asi 482MC for my 255mm f20 Maksutov Rumak telescope about images of the solar system. Now I ask you if I must use an UV-IR Block filter or not on this camera. Is possible use ASI 482MC with 685 IR Pass filter for lunar images and Solar Continuum 540nm filter for the Sun ? Thanks.
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Memory Ji – :
We recommend you use the UV-IR Block filter.
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Josu – :
Which IR/UV cut window fits the new ASI485MC camera?
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sara.liu – :
The ASI485MC comes with the D25AR window, if you want to replace it with an IR/UV cut window, please use D25IR-CUT window.
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Yukihiro – :
Is the cleaning of ARD21 by anhydrous alcohol forbidden?
How is the neutral detergent?
What is the best wet cleaning material?
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sara.liu – :
We recommend you the lens cleaner.
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David Benjamin – :
Does the AR window of the 178mm cut the UV? I would like to know if in case you remove it to photograph well the planet Venus, since my uv filter for Venus is 300-380nm. Thank you
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sara.liu – :
The AR window does not cut the UV.
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Jairo Vrolijk – :
Should the protective window for the ASI294 be installed pointing in a specific direction, or is the anti-reflection both ways? Can this contribute to halos around bright stars?
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Support@ZWO – :
There is no specific direction.
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Laurent – :
Hi,
Which IR/UV cut window fits the new ASI462MC camera? Is it difficult to replace?
Thank you
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ZWO.Moson – :
D21 AR window fits the new ASI462MC camera. We don’t recommend you replace it by yourself.
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laurent – :
Hi, on my ASI 224MC, my protective glass was scratched.
This protective window is mandatory to have a good focus or it’s not necesary to have one ?
Should i order a new one ? AR or UV/IR cut ?
Thanks
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Katherine Tsai – :
It is used to protect sensor. AR or UV/IR cut depends on your photograph need, both were OK.
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David Churchill – :
As a follow up to my earlier post/question. I have added a IR/UV cut window to my ASI183MC. I purchased a 31mm Optolong filter. It’s the same thickness as the AR window and seats nicely on the existing O-Ring. I added a 0.5mm filler around the edge to keep the filter centered…. works great!! I just wanted to pass this along incase anyone else has a similar need.
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Moson – :
Thank you very much for sharing this good solution to us!
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David Churchill – :
Do you have plans to introduce a 32mm IR protective window? I have the ASI183MC and really need this in place of the standard AR window. If not, do you know any manufacturer who may offer this please?
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Moson – :
I’m sorry we don’t have this plan to introduce a 32mm IR protective window.And we don’t know which manufacturer may offer this IR protective window.
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Markus Bruhn – :
Hallo, ich habe die ASI178MM und habe eine Frage zum AR Schutzfenster. Mein UV- Venusfilter hat ein IR-Leck und erzeugt schwache Geisterbilder . Ich habe das AR Schutzglas von der Kamera entfernt möchte wissen ob es besser ist das Glas wieder vor den Sensor zu setzen oder stattdessen einen reinen IR-cut Filter zu kaufen.
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Katherine Tsai – :
You can replace it with IR cut if you want.
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Ronald Jorvet – :
Where can I find instructions on how to remove the protective window? I read the instructions on how to clean the sensor and window but it does not mention there how to remove the window itself. I haven’t received my camera yet so it could be a simple step but in case it is not can someone point me in the right direction?
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Katherine Tsai – :
https://astronomy-imaging-camera.com/manuals/How_to_clean_ASI_camera_and_redry_the_desiccant.pdf
Here is a quick guide of how to redry the camera that inclding how to open the camera cover, it may help you.
If your camera is an uncooled camera, just open the camera cover and replace the window.
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Brian Donovan – :
Does it matter which way around the glass is placed over the sensor? I took mine out of my 120MM for cleaning and lost track of which side faced the sensor.
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Katherine Tsai – :
It does not matter.
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Emar. – :
La vitre ir-cut est-elle compatible avec 290 MC ?
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Katherine Tsai – :
Yes it is compatible.
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Paul Tadrick – :
Do you make an IR-Cut window that fits on the ASI294MC Pro?
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Katherine Tsai – :
Sorry we do not have D32 IR right now.
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Nick A – :
I just ordered a ASI1600 Pro from one of your dealers. Is the AR D32 included with the ASI1600 Pro?
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Sean Wang – :
Yes, it is on the camera.
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