Jump to content

sgl_imaging_challenge_2021_annual.thumb.jpg.3fc34f695a81b16210333189a3162ac7.jpg

Jupiter colour balance help please


Recommended Posts

Try putting the data through PIPP.

If you crop to 400 pixels square and tell it to choose teh best 100 frames it will be small enough to share.

You can try its debayer or tell it not to.

Also, if you check equalise channels and stretch histogram to 85% it might solve your issues.

  • Like 2
Link to post
Share on other sites
  • Replies 35
  • Created
  • Last Reply

Top Posters In This Topic

Top Posters In This Topic

Popular Posts

Ok, I think we have the answer and it is, as has been suggested, my refractor.  Although my newtonian wasn't cooled and the seeing was poor tonight, here is a Jupiter shot through it with the same bar

Same scene through my 80mm f/7.5 achro… ...and my 80mm f/7 apo:

Try putting the data through PIPP. If you crop to 400 pixels square and tell it to choose teh best 100 frames it will be small enough to share. You can try its debayer or tell it not to.

Posted Images

30 minutes ago, Stub Mandrel said:

Try putting the data through PIPP.

If you crop to 400 pixels square and tell it to choose teh best 100 frames it will be small enough to share.

You can try its debayer or tell it not to.

Also, if you check equalise channels and stretch histogram to 85% it might solve your issues.

Ok thanks. Will give it a go later today/ tomorrow and report back. 

Link to post
Share on other sites
18 hours ago, Stub Mandrel said:

Try putting the data through PIPP.

If you crop to 400 pixels square and tell it to choose teh best 100 frames it will be small enough to share.

You can try its debayer or tell it not to.

Also, if you check equalise channels and stretch histogram to 85% it might solve your issues.

Well I think this is what you meant (with my brain learning new software is a bit of a shot in the dark).  Anyway, output looks very similar to bayered output from AS2 before stacking so I guess my issue is, as already suggested, CA from my refractor/barlow/camera combi.  When I've had a chance to use the same set up on my newtonian I guess I will find out if it's the CA of the Vixen.  Still love the Vixen and, visually, never find the colour an issue.  Once again, thanks for all the help/input.

Link to post
Share on other sites

A long time ago I had a very similar issue with my 120mm evostar refractor and spc 880. Did my best in photoshop but to no great effect, but a bit more pleasing to my eyes (at a distance)?

 

jupiter%2005_12_2012%2022_29_10__ST1139.jpg

jupiter 05_12_2012 21_47_43.jpg

  • Like 1
Link to post
Share on other sites
21 minutes ago, Cozzy said:

A long time ago I had a very similar issue with my 120mm evostar refractor and spc 880. Did my best in photoshop but to no great effect, but a bit more pleasing to my eyes (at a distance)?

 

jupiter%2005_12_2012%2022_29_10__ST1139.jpg

jupiter 05_12_2012 21_47_43.jpg

I think that's a huge improvement and a really nice image. Amazing from an 80mm f5 as well! I guess if I was any good with Photoshop I could achieve something similar but I tend to use the simpler,and far less effective, Faststone. (free!) and haven't been able to achieve anything like that.

Link to post
Share on other sites
3 hours ago, runoffshed said:

Well I think this is what you meant (with my brain learning new software is a bit of a shot in the dark).  Anyway, output looks very similar to bayered output from AS2 before stacking so I guess my issue is, as already suggested, CA from my refractor/barlow/camera combi.  When I've had a chance to use the same set up on my newtonian I guess I will find out if it's the CA of the Vixen.  Still love the Vixen and, visually, never find the colour an issue.  Once again, thanks for all the help/input.

Jup_231728_pipp.avi

Can you upload a RAW or unbayered version?

Link to post
Share on other sites

Ok, I think we have the answer and it is, as has been suggested, my refractor.  Although my newtonian wasn't cooled and the seeing was poor tonight, here is a Jupiter shot through it with the same barlow and camera and, to my eyes, the colours are pleasingly natural...even if the image is poor.  (As an aside, I have never used this telescope to image before or I wouldn't have asked the question that you have all so kindly being trying to help with.  It is so unwieldy with poor drive adjustments but I have worked out a method of getting the subject on the chip with it so may use it more in the future.)  Anyway, here is an image taken this evening, resized to 60%.  

224911611_Jup6618regi60percentresize.jpg.ee2a56425e042604297182cd9bfeffa0.jpg

Once again, thanks so much to everyone for your input and patience.  I have learnt a lot from the exchange and I am very grateful.  Many thanks all.

  • Like 4
Link to post
Share on other sites
On 06/06/2018 at 14:25, runoffshed said:

I think that's a huge improvement and a really nice image. Amazing from an 80mm f5 as well! I guess if I was any good with Photoshop I could achieve something similar but I tend to use the simpler,and far less effective, Faststone. (free!) and haven't been able to achieve anything like that.

It was the EVOstar120mm (4.75") f8 Achromat Refractor  and 3x balow ?

  • Like 2
Link to post
Share on other sites
21 hours ago, Cozzy said:

It was the EVOstar120mm (4.75") f8 Achromat Refractor  and 3x balow ?

Sorry, no idea where 80mm f5 came from...another post by someone else maybe? ( Very relieved to hear it wasn't just an 80mm at f5!) Thanks again for help.

Link to post
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.