Nikon-T2 Adapter suitable for all ASI cameras


Suitable for cameras which back focus distance is 12.5mm or 17.5mm

SKU: ZWO-Nikon-T2 Category:

Product Description

Nikon-T2 adapter has two parts(Nikon-T2 adapter and T2-extender), suitable for all ASI cameras

This new type is unadjustable.

Nikon-T2 adapter without T2-extender is suitable for 17.5mm backfocus cameras(including 6.5mm backfocus camera with 11mm ring)


Nikon-T2 adapter with T2-extender is suitable for all 12.5mm backfocus cameras.


You can use 2″ IR-CUT filter by the adapter.

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What’s in box?


NOTICE: G-type Nikkor lenses need to find some way to open the aperture up.( for exemple, using an orthodontic rubber band to hold the little aperture tab on the lens in the “open” position.)


  • Fast Shipping(amount ≧ 299USD) for free
  • Fast Shipping(amount < 299USD) : $20.00
  • Free Shipping(amount < 299USD) (Air Mail, 3-4 weeks) (Free)


  1. Fast Shipping: we will choose DHL, UPS, TNT, EMS etc to deliver it. Usually you will get your package in one week. We provide free fast shipping for order ≧ $299 or charge extra $20 for order < $299.
  2. Free Shipping: we will ship via DGM or China Post Registered Air Mail. It usually costs 2-3 weeks to reach US or Europe and costs 3-4 weeks to reach far places.
  3. Customers from Brazil and Chile should leave a message to provide your CPF or CNPJ as your custom needs it.
  4. Customers from Russia need to provide the name of your company.

Tracking site:


China air mail:


  • The price list on our website is USD without tax.
  • Please note that buyers areliable 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 or replace for free if the camera doesn’t work within warranty period. After the warranty period, we will continue to provide repair support and service on a charged basis.
  • 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 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.
  • For customers who bought the camera from our dealer, dealer is responsible for the customer service for you.

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

  1. :

    Can this accept 2″ filters inside?

    • Sam Wen


      yes, M48*0.75 thread inside

  2. (verified owner):

    Hi Sam,

    I want to use my new ZWO ‘Nikon T-2 adapter for all ASI cameras’ with my great nikon lenses and wonder what to set the depth adjustment to. It seems adjustable from about 24mm to 31mm deep. I like my ASI071 btw!

    There does not seem to be space to completely close down over the ‘Orion SkyGlow Imaging filter’ I want to use. I can machine to allow it to fit possibly… just saying.


    • Sam Wen


      Hi James
      Is the Orion filter 2″? you can screw to inside it

  3. :

    Hi Sam, many thanks for bringing us the Nikon-ASI adapter! I enquired last year and ZWO really did it as promised. A thumb up for ZWO again!

    • Sam Wen


      Thanks! just take too much time 😉

  4. :

    Modern Nikon lenses without a manual aperture ring remain at f22 (or whatever their smallest aperture is) until electronically controlled to open up, or unless an adapter has a physical aperture control ring which physically opens the aperture.

    I don’t see any such controls on this T2 adapter product. How do you recommend users open their Nikon lens apertures to f1.4 etc as obviously we don’t want to be stuck taking pictures at f22.

    • Sam Wen


      that’s a problem, I don’t think our current design allow open the apertures
      we will try to find a way

  5. :

    1) The Focal distance is adjustable from 26mm to 33mm. The back focus for a Nikon F-mount is 46.5 mm. The back focus of the ASI camera is 12.5 mm. So the maxiomum focal distance possible is 45.5 mm which is 1 mm short. Why?

    2) Is it possible to use a T-mount filter between the camera and the adapter? The adjustment range from 33mm to 26 mm should be enough to compensate for the thickness of the filter.

    3) I am also in need for an adapter for Olumpus OM mount. I have several good quality lenses with this mount back from the 70’s and 80’s. Any change you will offer those?

    4) With respect to Andy’s question: it is possible to use a small spacer to keep the diaphragm open. You could experiment with several spacers to find the diaphragm of your choice.

    • Sam Wen


      1.most lens can adjust focus, so this won’t be a problem,you can add T2 extender if shorter back focus camera used accept M48*0.75 2″ filter
      3.there is too few such demands, so we won’t make it, but maybe there is Olympus to EOS adapter in market
      4.our current design doesnot support G mount lens, it make the adapter more complicated and there is few user

  6. :

    I have 1.25” narrowband filters. Is there anything that would allow me to use them in conjunction with Nikon lenses and a ZWO camera?

  7. :

    Can this be used with the ASI120MM-S?

    • Sam Wen


      yes, you can

  8. :

    Can I use this on the ASI071?

    • Sam Wen


      yes, of course

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