Jump to content
  • Join the online East Midlands astronomy club today!

    With active forums, two dark sites and a knowledgeable membership, East Midlands Stargazers has something for everyone.

SCT Collimation Mask


Guest CodnorPaul
 Share

Recommended Posts

Guest CodnorPaul

Thanks for posting this. Looks interesting.


 


I may try one if i get nowhere with the 'Uncle Rod' method.


Link to comment
Share on other sites

I got one.


 


Works ok but you still need good conditions to use it as you have to use high magnification like a star test.


 


Ok as a confirmation of a star test.


Link to comment
Share on other sites

Guest CodnorPaul

Thanks Phil and tbird.


 


Why do you need good conditions to use it - you ramp the mag up isn't all you need a donut, not any concentric rings?


Link to comment
Share on other sites

If the seeing isn't very good then it's difficult to judge the image, it's not a donut, it's similar to a bahtinov mask.


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
 Share

×
×
  • 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.