Jump to content

740427863_Terminatorchallenge.jpg.2f4cb93182b2ce715fac5aa75b0503c8.jpg

Filters and Diagonals


Recommended Posts

Firstly, when and why do you need to use filters? I understand that a very bright moon may need toning down a bit so a neutral or lunar filter would be useful but what about the other types?

Second, how much benefit is there in upgrading a diagonal? I am current using the celestron one which came with my cpc 800, but the fella at Green Witch said it may be worth getting a better one.

Finally, if I was looking to buy, can anyone recommend a reasonably priced filter(s) and diagonal.

Thanks in advance, Alan.

Link to comment
Share on other sites

Hi Alan, here is an article on filters for deep sky -Filter Performance Comparisons - Article

It's quite long, but can save expensive mistakes.

There are also coloured filters for planetary use, will

come back here if I can find a link.

Regards, Ed.

Edit - here is a link for planetary filters - http://www.meade.com/catalog/meade_4000/meade_series_4000_filters_02.htm

but as this is a manufacturers link, they would say they work. I have never used filters for planetary use, and I've heard

mixed opinion as to their usefulness. But I have an OIII and a UHC filter, and they definitely work, as long as they are used

on their intended targets, as the first link describes.

Lee at Green Witch knows his subject, and gives good advice.

Edited by NGC 1502
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

  • 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.