Nikon lens adapter for 2”Filter Wheel




SKU: ZWO EFW2-Nikon Category:

Product Description


Nikon lens adapter that can be used to connect Nikon lens to 2”EFW.
The thread of the interface is M54*0.75, which means it can only be mounted on 2” EFW, not suitable for 1.25”/31mm/36mm EFW.

Nikon lens adapter for 2”Filter Wheel-1 Nikon lens adapter for 2”Filter Wheel-2 Nikon lens adapter for 2”Filter Wheel-3

Connection Method:

Connection method

Note: The sensor tilt adapter need to be removed before you connect the camera to the 2” EFW.


Detailed instruction:

1. Prepare the ASI camera, Nikon lens adapter, Nikon lens, 2” EFW, screwdriver and hexagon wrench;

Nikon lens adapter for 2”Filter Wheel-4

Use the hexagon wrench coming with the camera to remove the sensor tilt adapter;

Nikon lens adapter for 2”Filter Wheel-5

3. Use the screwdriver to remove the back cover of EFW;

Nikon lens adapter for 2”Filter Wheel-6

4. Disassemble the filter wheel carousel (Note: Please do not disassemble or move the central screw of this carousel, otherwise the EFW will be damaged);

Nikon lens adapter for 2”Filter Wheel-7

5. Align the four screw holes of EFW with these in the four corners of the camera chip as shown below. Tighten the screws;

Nikon lens adapter for 2”Filter Wheel-8

6. Reassemble the EFW;

Nikon lens adapter for 2”Filter Wheel-9

7. Mount the Nikon lens adapter on the back cover of EFW;

Nikon lens adapter for 2”Filter Wheel-10

8. Connect the Nikon lens to the adapter.

Nikon lens adapter for 2”Filter Wheel-11

9. All done.

Nikon lens adapter for 2”Filter Wheel-12

Mechanical drawing:

Mechanical drawing

Our website is always 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 has been installed before you start shooting:

It is also recommended to read the Manuals first before shooting.


Fast Shipping: we will choose DHL, UPS, FedEx etc to deliver it. Usually you will get your package within 7-14 days.

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


  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:
  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


China air mail:



  • 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: 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.

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

  1. Avatar


    Hi, is it possible to set the aperture of the lens using this, or is always fully open? thanks


    • Avatar


      No, it is not always fully open.


  2. Avatar


    Are there plans for a similar adapter for the new Nikon Z mount, please?


    • Avatar


      There is no such plan.


  3. Avatar


    Hi, I see in the images that a male and female thread are present on the adapter. Could you tell me what kind of threads these are?


    • Avatar


      The thread of the interface is M54*0.75, which means it can only be mounted on 2” EFW, not suitable for 1.25”/31mm/36mm EFW.



Add new

Recommended Accessories