Product Description

ZWO 2.5mm 170 degree lens

Technical Parameter:

Format support: 1/2″ sensor

Focal length: 2.5mm

Wide angel: 170 degree

Compatible with the following camera models: ASI178MM, ASI178MC, ASI385MC

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.

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

Bleys – November 13, 2023:

What is the size of the image circle of this lens? I’d like to know how suitable the ASI678MC is in particular.

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- chole le – November 15, 2023:
  
  Hello! I’m sorry, the lens cannot work with ASI678MC.
  
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Nicholas – September 7, 2023:

Can this lens be focused using the EAF on an ASI224MC camera? Thank you!

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- chole le – October 18, 2023:
  
  Hi! Deeply sorry, it doesn’t support.
  
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Arnaud Leroy – August 15, 2023:

Hi all ,Can I use this lens with a ASI585MC ?? Thanks for your reply.

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- chole le – October 18, 2023:
  
  Hello! This lens cannot be used with the ASI585MC.
  
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Darrell Burke – August 15, 2023:

I have the same question that was not answered above “Can I use this lens for ASI224MC?”

I have also emailed the company and no reply please answer ASAP

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- chole le – October 18, 2023:
  
  Hello! This lens can be used with the ASI224MC.
  
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Edison Bustos – November 23, 2022:

Hi,
Is this a CS mount lens?
Can I use with my ASI290mm camera? or I have to purchase an adapter
Thanks and best regards

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- chole le – October 26, 2023:
  
  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 support!
  
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Mike – January 13, 2022:

Can I use it with ASI183MC ? If yes, what do I need ?

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- sara.liu – January 18, 2022:
  
  This lens is too small for ASI183MC, they are not compatible.
  
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Mike Turner – January 5, 2022:

Can this lens be used on the ASI120mm-S?

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- sara.liu – January 10, 2022:
  
  No.
  
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nik tillis – June 13, 2021:

can i use this with my ASI385MC?

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- sara.liu – June 16, 2021:
  
  Yep, this lens is compatible with ASI385MC.
  
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Toni Font – July 31, 2020:

This lens says “IR”. Whats the meaning? Does it mean it has IR-V embedded? Or it is IR transparent?
Thanks

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- ZWO.Moson – August 3, 2020:
  
  It means IR pass, this lens is suitable for night vision.
  
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Urs – September 7, 2019:

Is this lens fixed fous? It looks like the “focus” ring turns forever!

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- ZWO ASI Camera – September 9, 2019:
  
  no, it is not fixed fous.
  you could fix with the screwdriver whihe you adjust the focal length.
  
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Joel – September 2, 2019:

What is the purpose of the set screw? Can you move the lens element section in and out a bit to fine-tune back focus?

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- ZWO ASI Camera – September 2, 2019:
  
  This screw is used to fix the focus ring of the camera.
  
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Giritharan – May 22, 2019:

Does this lens have thread below for m25.4×0.75?

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- Katherine Tsai – May 22, 2019:
  
  No it doe not have.
  
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Huw – March 8, 2019:

Can I use this zwo-2-5mm-150-degree-lens on asi183mc color? if not, can you recommend a fisheye lens for asi183mc color? Thanks a lot!

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- Katherine Tsai – March 15, 2019:
  
  183 sensor is too big for fisheye lens.
  
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Arvid – December 24, 2018:

Sam Wen said: “it’s F2”

But it says 1:1.2 on the front ring! Is that wrong? The light gathering capability difference between these numbers is huge; an f/1.2 lens gathers about 2.8 times more light than an f/2.0 lens! So which is it?

Also, what does the “IR” signify? That it is transparent at IR wavelengths, or that it cuts IR?

Thanks!

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- Katherine Tsai – December 26, 2018:
  
  Sorry about that.
  It F1.2, as it is said on the front ring.
  
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33-4 – October 8, 2018:

If I use CS/C conversion adaptor , does this lense work with ASI290MM-Cool ?

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- Sean Wang – October 9, 2018:
  
  290mm-c work with CS mount, will support C type lens, because the back focus is 17.5mm
  
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Hide – August 4, 2018:

Doesn’t work with any cooled camera including ASI178MC-Cool?

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- Sean Wang – August 6, 2018:
  
  Yes, that’s correct.
  
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Brian – November 18, 2017:

Does this lens work with the new ASI385MC? Also… what is the focal ratio?

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- Sam Wen – November 21, 2017:
  
  this lens come with ASI385MC
  it’s F2
  
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Sandra (verified owner) – October 8, 2017:

I’d got one for a ASI178MM-Cool and can’t reach focus. I used the T2 To CS or C adapter adapter
I appears to say it should work with the ASI178MM what am I missing

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- Sam Wen – October 9, 2017:
  
  this lens is CS lens, cannot be used on our cooled camera whose back focus distance is 17.5mm
  
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Jaeong – September 10, 2017:

Can I use this lens for ASI224MC? I wanna make all sky camera.

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