Jump to content




Celestron f6.3 reducer


Recommended Posts

I have a Celestron f6.3 reducer that had annoying dust in between the centre lenses. A simple job I thought to clean it so I took it apart carefully.

During the operation I was called away from my bench in the garage to bath the kids icon_rolleyes.gif when i returned I couldn't remember the lens configuration icon_redface.gif

There are 2 groups of lenses consisting of 2 bonded lenses., I can work one out because the diagonal has made a micro faint 1.25" mark on the surface (WARNING :- dont fit a diagonal to a Celestron f6.3 reducer)

So one lens is definitely in correctly icon_redface.gif

The lens groups consist of one fat & one thin bonded together, there is also a spacer between the 2 groups.

From the camera / imager side (fat/thin) spacer (fat/thin)


From the camera / imager side (fat/thin) spacer (thin/fat)

Can anyone please help :icon_eek:



Link to comment
Share on other sites

Hmmm ........Hard to tell without pulling it apart, but the front surface of the front lens seems to be almost flat ( ie the surface which faces the telescope)

Hope this helps....

What about the rear surface .... :icon_eek::D


Link to comment
Share on other sites

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now

  • Recently Browsing   0 members

    • No registered users viewing this page.
  • Create New...

Important Information

We have placed cookies on your device to help make this website better. You can adjust your cookie settings, otherwise we'll assume you're okay to continue. By using this site, you agree to our Terms of Use.