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.

Recommended Posts

Cripes! I've had to reverse engineer the image details. Definitely September 29th, 36 120s subs (possibly a 300s and 60s one as well), Canon 450D and my 150PL on HEQ5, guided.

This was a really horrible session with loads of things going wrong and weather problems (as I recall!)

Processed with DSS, FITS liberator, Photoshop and Astra Image (I think).

 

large_M15.png.7cdc01775b0f1eb4172552540428f724.png

Edited by Stub Mandrel
  • Like 7

Share this post


Link to post
Share on other sites
1 minute ago, happy-kat said:

What is your 450pl please?

I love how globs sparkle.

It's like a 150PL but three times bigger... aka a 'typo' ?

  • Haha 1

Share this post


Link to post
Share on other sites

Love it, maybe I could have one of those too, like scope creep but free.

Are you using fits liberator to save as the fits file to say tif to then process?

Share this post


Link to post
Share on other sites

I find 'mathematical' stretches on an unprocessed 32-bit FITS from DSS have given me a step change in image quality. The knack is choosing the best transform for each dataset and the right place to put the black point.

I save the three layers (R, G & B ) as 32 bit TIFFS then in PS I apply gradient exterminator to the 32 bit data if required  - no more ugly gradient steps!

Then combine into an RGB, this downsamples to 16 bit. Some images benefit from doing the 16-bit downsample before combining them using the different processes available.

The resulting images are definitely smoother at the low end and seem to be easier to colour balance.

  • Like 1

Share this post


Link to post
Share on other sites

I am having trouble with wipe removing the appearance of the globular, I guess that is because my signal is too weak so it looks like noise or gradients.

Share this post


Link to post
Share on other sites

Nowt wrong with this, I'm a Globular groupie, and that is nice product.
M15 is 33.6 K light years and  one of the more star packed Globs.
A treat to the eyes.  Can't remember if You got a place with that one Stub.
 

Edited by barkis
  • Like 1

Share this post


Link to post
Share on other sites

Just tried splitting the channels in fits liberator and process them but boy did I end up with a super noisy blotchy background, didn't work for me.

Share this post


Link to post
Share on other sites

Yes, that's a good one!

Share this post


Link to post
Share on other sites

  • 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.