ZWO EFWmini (5 x 1.25″or 5 x 31mm)

$199.00

SKU: ZWO EFW-MINI Category: Tag:

Product Description

The smallest and most lightweight 1.25″ Electronic Filter Wheel in the world!

300g  ONLY ! Small than your hand !

EFW in Hand

The body is CNC machined from a full block of aircraft grade aluminium.

Very thin design, 20mm ONLY

 

 

EFW in Hand side view

The step motor is the heart of the EFWmini, which is made by NPM from Japan. You can trust its quality and relability.

P1010741

Supports both 5*1.25″ filters or 5*31mm filters

The Electronic Filter wheel can be rotated in both counter clockwise or clockwise direction for filter selection.

EFW

Only one USB Cable is enough to power up the EFW, the max power consumption is around 120ma@5V, so you can connected it form the USB2.0 hub of our cooled cameras.

P1010774

The distance between the filter and sensor is around 10mm when you connect it to ASI1600.

So 1.25″ filters won’t have vignetting up to F5 focal ratio scope and 31mm filter won’t have vigentting up to F2 lens

Our new RGBL filters are recommended to work with ASI1600, it will offer nearly 1:1:1 RGB color balance.

 

What`s in the box?

  1. EFWmini body
  2. 1.25″ cover
  3. T2 nosepiece
  4. 1.25″ holder(with cover and 2 screws)
  5. T2-T2 adapter(male)
  6. A bag of filter masks
  7. USB2.0 2m cable
  8. Phillips screwdriver
  9. A bag of M2 screws

 

 EFWmini

 

Mechanical drawing:

drawing

How to use it?

you juse need to plugin the EFW mini with USB2.0 cable and install the   ASCOM driver

There are  ZWO Filter Wheel(1) and ZWO Filter Wheel(2) to select,  you can use either one of them

There are 2 ASCOM is for controling 2 EFWmini in one software.

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

  1. 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
  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 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.

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

  1. Avatar

    :

    A really great product but the washers supplied with the M2 screws used to retain 31mm filters are too small in diameter to hold the filters.
    I have ordered slightly larger ones which hopefully will secure my Chroma 31mm filters.




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    • Sam Wen

      :

      thanks for the suggestion
      we already changed the washers to bigger one




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    • Sam Wen

      :

      thanks for the suggestion, we already changed the washers to bigger one




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  2. Avatar

    :

    Any plans for indi driver?




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    • Sam Wen

      :

      there is already one test version




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  3. Avatar

    :

    What is the length of the USB cable? I bought a ASI178MM from OPT but it does not have a USB hub. This camera has a guide port. 🙁

    I am starting to think I should have ordered one direct from you with a USB hub. Then the cord length would not matter.

    I’m also concerned that if the cable is too short, I may need to buy one that is longer. What kind of ends does the cable have? Obviously one end is USB, what type of end plugs into the EFW?




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    • Sam Wen

      :

      the cable come with the EFW is 2 meters
      the new camera with hub has 2 short cable 30cm




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  4. Avatar

    :

    Hi.
    Looks like a great product!
    Are there buttons on the unit to move the filter wheel manually, or can you only switch filters with a computer attached?
    Thanks




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    • Sam Wen

      :

      this is controled by computer




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  5. Avatar

    :

    Thanks!
    When the order for aliexpress is available?




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    • Sam Wen

      :

      we will try to upload in next few days




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  6. Avatar

    :

    Hi Sam!
    I have ASI 1600MM-Cool, the Sky-Watcher 80ED and SW 0.85x reducer telescope. I want to buy ZWO EFWmini, but I don’t know what to provide a rabody segment of SW 0.85x reducer. You can help?
    Thanks!




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    • Sam Wen

      :

      the reducer usually require 55mm back focus
      so you can connect the the camera to your scope like this
      1600 + EFWmini + T2-T2 + T2 extender + T2-M48
      6.5+20+1+11+18.5=56mm
      this distance should be very close to what you need




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  7. Avatar

    :

    Will there be an option of purchasing additional carousels for this filter wheel?




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    • Sam Wen

      :

      do you mean the filter wheel?




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  8. Avatar

    (verified owner):

    Bonjour, Avez vous le lien des pilotes pour la roue à fitre, ça ne fonctionne pas.
    Quel “port COM” faut-il utiliser car j’ai tout essayer???
    Merci




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    • Sam Wen

      :

      There is no COM port and it don’t need driver
      it’s a HID device just like keyboard or mouse
      you just need to install our ASCOM driver to use it




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  9. Avatar

    :

    What is the total backfocus of the EFW and ASI1600MM-cool?

    Thanks,
    DT




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    • Sam Wen

      :

      6.5+20=26.5mm




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  10. Avatar

    :

    hi sam,
    I’ve tested your efw, it works fine.
    I think the ascom driver could be better if the user could rename filters.
    Is it expected?

    Regards
    Maxime




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    • Sam Wen

      :

      thanks for the suggestion, can you show us example?
      you can email us




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  11. Avatar

    :

    What height filters can be used with this filter wheel? I have a set of Baader LRGB filters already – overall height, including threads is 9.5mm




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    • Sam Wen

      :

      the threads can accept 3mm and the height of the filter without threads can accept 7mm




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  12. Avatar

    :

    I have 2″ LRGB unmount filters.
    That’s why I said so.




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    • Sam Wen

      :

      OK, our big EFW will choose to use T2 interface on both sides




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  13. Avatar

    :

    Hi Sam.

    Do you have any schedule for develope the EFW for 2″ unmout filters.
    If you have, when?

    Thanks.




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    • Sam Wen

      :

      we don’t have such big camera
      so I think our big EFW will support 8*1.25 7*36 at first
      do you think T2 is big enough for 2″ filters?




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  14. Avatar

    :

    Hi my scope is f5 + reducer which bring it down to f3.6.
    If I use 31mm with this wheel will it still have vignett?

    Thanks




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    • Sam Wen

      :

      no vignetting if you use 31mm filter




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  15. Avatar

    :

    Whether there will be a version with 7 or 9 filters?

    Thanks!




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    • Sam Wen

      :

      I think big one will take around 2-3 months




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  16. Avatar

    (verified owner):

    What diameter and thread count are the retaining screw holes for the 31mm filters? I believe that a competitor’s similar screw is size 2/56.




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    • Sam Wen

      :

      yes, they are M2




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  17. Avatar

    :

    An automatic filter wheel is awesome! Will it work with The Sky X so I can control it remotely on my Paramount?




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    • Sam Wen

      :

      of course, ASCOM driver is supported
      all software compatible with ASCOM will work




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  18. Avatar

    :

    Looking at the picture of the ASI1600mm-c associated with the EFWMini, the output seems to have been changed from a guide port to a USB 2.0(see picture in the camera URL). I am expecting a delivery of a ASI1600mm-c in the next few days and wonder how to run a EFWMini if the camera I get has the guide port only?




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    • Sam Wen

      :

      all cooled cameras we are producing are with USB Hub
      you can also connect the EFW with a usb2.0 cable directly to your computer




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  19. Avatar

    :

    This looks great! It says that it will only work on scopes up to f5 without vignetting. Does this mean there will be vignetting on f4 newtonian as well? Also, I have a refractor that is f.5.5, but with the reducer it is f4.3. Will this setup vignette? (I’m interested in using this with the 1600MM camera. Thank you!




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    • Sam Wen

      :

      yes,I think there is very small vignetting for F4 scope, but should be not very noticeable




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  20. Avatar

    :

    What software can be used to control the EFW?

    Regards,

    Graham




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    • Sam Wen

      :

      there is ASCOM driver for the EFW
      so any software support ASCOM EFW can control it
      such like SGP MDL APT…




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