Holder Ring for ASI Cooled Cameras(78mm diameters)



SKU: ZWO-RINGD78 Category:

Product Description

This holder ring suitable for all ASI cooled cameras whose diameters is 78mm except ASI094, ASI128 & ASI071holder1200x1000

there is 1/4″ screw under the holder, so you can mount the camera to tripod



holder3_1200x1000  holderring1200x1200


Before first usage of this product read manuals and install correct drivers and software.


  • 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:

DGM: http://webtrack.dhlglobalmail.com/?locale=en-US

China air mail: http://www.17track.net/en


  • 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: info@zwoptical.com. 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. :

    will the holder ring work with the ASI 120 mono?if not, is there any other way to be able to attach it to a tripod?

    • Sam Wen


      there is 1/4″ screw under 120 house
      so no holder ring needed

  2. :

    it’s also possible to use for ASI178MC ???


    • Sam Wen


      no, 178MC has 1/4″ screw in the back

  3. :

    Is it possible to get a dimensional drawing? what material is it made of? what is its weight?


    • Sam Wen


      it is made of Aluminum, very light weight
      no drawing available yet

  4. (verified owner):

    Can this be used to mount the camera to a telescope mount with filter wheel and Rokinon 14mm or 35mm lens attached to the front of the camera? Will that be too much weight?

    • Sam Wen


      this is used to mount the camera to a tripod, there 1/4″ screw under the hold ring

  5. (verified owner):

    Yes I know. What I want to know is if we connect the camera to the tripod like that and filterwheel and Rokinon 35mm lens attached to the front of the camera, then will that be too much stain on front T thread of the camera.

    • Sam Wen


      I think 35mm lens is not very heavy, it should be balance

  6. :


    Is this holder suitable for ASI 178 MM-C ?

    • Sam Wen


      yes, you can use it

  7. :

    Is it possible to attach this holder ring to asi120mm with samyang 85mm lens to mount this on a dovetail with 1/4″ screw to shoot widefields?

    • Sam Wen


      no, this hold ring is only for cooled cameras
      you may need one ring to mount your lens

  8. :

    Why this holder ring is under “Recommanded Accessories” on the website for the ASI071 and the article text clearly say, this holder ring is NOT for the ASI071? And which holder ring is for the ASI071, there is no other one. The same unclear information on the EOS adapters, don’t list back focus distances! These are your adapters and your cameras, please list the compatible cameras in the detailed information of every adapter. It would be much easier.

    • Sean Wang


      It’s a mistake, we will fix that soon.

  9. :

    Does this have a dimensioned drawing yet? I would like to model the actual size or at least get some basic specifications.


    • Sam Wen


      sorry, there is no such drawing
      the inner diameter of this ring is 78mm

  10. :

    Do you have some type of mount for the Un-Cooled Camera that have mounting holes in the backs of the camera’s like the ASI185MC. Really need to get one.

    • Sam Wen


      you can mount they directly with the 1/4″ screw

  11. (verified owner):

    Will there be a 86mm version coming out for Pro Cameras?

    • Sean Wang


      Yes, we already have samples. It will release soon.

Add new

Recommended Accessories