ASI 1.25″ Low Profile Cover


ASI 1.25″ Low Profile Cover can  reduce the back focus distance of ASI Cameras  to around 5mm

SKU: ZWO-LPC1.25 Category:

Product Description

This adapter can be used on all  uncooled ASI cameras to reduce the back focus distance to around 5mm

so you can focus on some very short back focus scopes such like PST

Please note : when you open the camera, make sure it is on a flat surface with the lens pointed upwards. If it is not in this orientation the glass that shields the sensor may fall out which can cause dust to get on the sensor.

low profile cover

just unscrew the old cover off and screw in the new one

PS: this new cover can not hold the protect window of ASI174MM/MC, so you need an external 1.25″ filter

low profile cover+camera


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)

If you can’t get the air mail package after 4 weeks, please let us know ASAP:


  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 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.
  • 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


    Is this threaded to accept 1.25″ focal reducers or other filters? Description doesn’t specifically say and can’t tell from pictures.


    • Avatar


      Yes it supports.
      It supports M28.5*0.6 interface.


  2. Avatar


    Hi, i have got a 290MC and i have to fit a focal reducer 0.5 X, at a moment i have a standards nose piece (25mm i belive) but i need more inward focus, would this 5mm low profile cover work?


    • Sean Wang


      Not for sure if it can help you reach the focus.


  3. Avatar


    I wonder if it is possible to unscrew the 1.25 tube in order to replace it by a M42/0.75 male thread ?


    • Sean Wang


      No, it’s one piece.



Add new