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  1. Galleries
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  3. Astrophotography
  4. » Globular cluster M5

 
Globular cluster M5...

Astro 3.0

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Globular cluster M5 sent on March 04, 2025 (16:19) by -zeppo-. 10 comments, 165 views. [retina]

Gli ammassi globulari sono delle brutte bestie da riprendere per svariati motivi: servono focali lunghissime, ottiche corrette, tecnica di ripresa e non ultimo un cielo decente... spero vi piaccia nella sua semplicità :)


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avatarsenior
sent on March 04, 2025 (16:43) | This comment has been automatically translated (show/hide original)

And, I add, (in my opinion!) they are among the most beautiful and exciting objects to observe!
It seems to me, as usual on your part, a great result!

avatarsupporter
sent on March 04, 2025 (16:46) | This comment has been automatically translated (show/hide original)

Thank you Black, with a better sky you could get a better result, but given the poor quality of my urban sky I can be sufficiently satisfied ;-)

avatarjunior
sent on March 05, 2025 (10:03) | This comment has been automatically translated (show/hide original)

Beautiful even if I see, on the sides, a not perfect alignment of colors. Have you used an image flattener?

avatarsupporter
sent on March 05, 2025 (11:13) | This comment has been automatically translated (show/hide original)

It's an Edge HD8 with its gearbox, maybe it needs a collimating

avatarjunior
sent on March 05, 2025 (11:47) | This comment has been automatically translated (show/hide original)

I had the Edge 8'' with its 0.7x too.
Maybe a little collimation needs to be reviewed and among other things with the C8 it is quite easy, you do it with intra-extra focus on a starry field and you check the donuts.
I took it off after a few months because of the stars but in hindsight I would have kept it.
I don't know if you're familiar with BluerXterminator, but I assure you that a pass of this plugin after removing gradients solves all your problems. A simple pass with the "correction only" option.
If you want you can send me the master that I give him a pass and I send it back to you so you can see how it works.
And anyway at least 8'' with large sensors (from APS-C upwards) perfect I have seen very few ...
Mine wasn't too different from yours anyway, with similar room: app.astrobin.com/u/mc0676?i=md9lj6

avatarsupporter
sent on March 05, 2025 (12:27) | This comment has been automatically translated (show/hide original)

Thanks Mc! yes, I use BlurXT too but here with the default parameters it made disasters, I have to try with the only correction ...
Now what are you using an RC8? Are they more correct?

avatarjunior
sent on March 05, 2025 (16:20) | This comment has been automatically translated (show/hide original)


avatarjunior
sent on March 05, 2025 (16:21) | This comment has been automatically translated (show/hide original)

i.imgur.com/6DfHa6i.jpeg

avatarsupporter
sent on March 05, 2025 (16:57) | This comment has been automatically translated (show/hide original)

I would say yes, thank you!
So what's your workflow like?
Linear image, gradient removal, starxt, blurxt for stars, blurxt nebulosity, reunite, stretch, curves/saturation and finally noisext?

avatarjunior
sent on March 05, 2025 (18:32) | This comment has been automatically translated (show/hide original)

Not too different from this:
https://astro-photographie.fr/wa_res/files/OSC1-Simplified_processing_of_color_OSC_images.png?t=
Here see other examples depending on the situation:
https://astro-photographie.fr/traitement_pixinsight.html?fbclid=IwY2xjawIPQfdleHRuA2FlbQIxMQABHSXF13x1jZy5dqTaMfvvxlNCKQvvNmiZsVw_3BS0_H1RzarxR55KlsCDvQ_aem_Aa_DlJgJSp9bBLGcUIAPKw&sfnsn=scwspwa




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