Jump to content

Stargazers Lounge Uses Cookies

Like most websites, SGL uses cookies in order to deliver a secure, personalised service, to provide social media functions and to analyse our traffic. Continued use of SGL indicates your acceptance of our cookie policy.

sgl_2019_sp_banner.thumb.jpg.a0ff260c05b90dead5c594e9b4ee9fd0.jpg

Recommended Posts

Hi again all

I had a quick go at NGC7380.

So far 8 x 10mins iso 800 , 10 darks and flats.

How could I get rid of the red glow on the left and bottom edges, and what causes it?

Am I taking my flats wrong?

Thanks

post-21699-133877516455_thumb.jpg

Share this post


Link to post
Share on other sites

You could try a quick fix I often use to eliminate the colour noise. Although in this case it is a bit difficult to distinguish noise from the busy star background............ Anyway,use the magic wand tool in PhotoShop to separate the 'sky' from the stars and nebula,desaturate and darken. Some stars will be lost but the main subject will stand out better.

A quick lunchtime edit attached.

post-13495-133877516634_thumb.jpg

Share this post


Link to post
Share on other sites

Another way would be to eliminate it by the dust/scratches filter in photoshop. I've used it @ 31 pixels and cloned the nebula out of the blurred version. Then I've made it a layer and used difference.

post-22634-133877517619_thumb.jpg

Share this post


Link to post
Share on other sites

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.

Guest
Reply to this topic...

×   Pasted as rich text.   Paste as plain text instead

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.


  • Recently Browsing   0 members

    No registered users viewing this page.

×
×
  • Create New...

Important Information

By using this site, you agree to our Terms of Use.