Jump to content




What screws are what?

Recommended Posts

Totally guessing here, but would assume the spring loaded ones are for colli. Well, on the old newt I had years ago it was.

How is the scope, it's on my list for the autumn?



Edited by iwatkins
Link to comment
Share on other sites

I have an Altair Optics F4 Newt and am wondering what are the collimation screws and what are the locking screws? Some have a spring on them and some dont - which ones are which?

Locking screws are the ones without spring, and collimation screws are the ones with the spring.

When collimating a telescope you first need to loosen the locking screws, then adjust collimation and then fasten the locking screws.

Link to comment
Share on other sites

Just to follow on from blinky's original post, I have read that many on here don't 'lock off' the primary mirror's position after collimation because it is likely to distort and introduce aberrations in the mirror. Is this a problem and how many here follow that thinking.


Link to comment
Share on other sites

Thanks guys - Gaz1968 came through with his Baader collimator but we ran into a little problem...... Basically you collimate with the scope lying on one side but after flipping it, collimation is off. I took the mirror out the tube and tightened up the screws holding the mirror on to the cell but this made little (if any) difference! So..... we (well Gaz actually) just got the collimation in the middle of the 2 sides and we will see how it works!

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.