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  1. Galleries
  2. »
  3. Astrophotography
  4. » Andromeda V2

 
Andromeda V2...

Astro 2.0

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avatarsupporter
sent on April 11, 2021 (9:56) | This comment has been automatically translated (show/hide original)

Wow I bow :-o

avatarsupporter
sent on April 11, 2021 (10:00) | This comment has been automatically translated (show/hide original)

I'm actually not satisfied yet... This year I am doing it again better, since I have also improved the shooting techniques ;-)

avatarsupporter
sent on April 11, 2021 (10:00) | This comment has been automatically translated (show/hide original)

Super zeppo shot, super shot !

avatarsupporter
sent on April 11, 2021 (10:03) | This comment has been translated

Thank you!

avatarsupporter
sent on April 11, 2021 (10:08) | This comment has been automatically translated (show/hide original)

gee. A lot of stuff... So many compliments Zeppo!

avatarsenior
sent on April 11, 2021 (10:38) | This comment has been automatically translated (show/hide original)

I congratulate you on how much you've improved compared to just a year ago
about colors, they're definitely not correct. I'll tell you just because of how much you've grown up, now it's only fair that you start treating your astrophile images ;-)

avatarsupporter
sent on April 11, 2021 (10:39) | This comment has been automatically translated (show/hide original)

Thank you Stefano!
What's wrong with colors?

avatarsenior
sent on April 11, 2021 (10:51) | This comment has been automatically translated (show/hide original)

I see two flaws:
the first one is a reddish dominant in the galaxy, the outer areas tend to be blue
(I guess it's a shot in real colors without h-alpha, right?)
the second (minor) on the bottom of the sky a little too blackened compared to the stars, makes them seem a little too contrasted.
is one of the hardest things to do, make the transitions of the stars soft, pull out all the signal that is there and do not highlight the noise
Where you try to raise the levels you will see that you have recorded even the outdest areas of the galaxy that however in the processing are not seen

cmq repeat, we are at the next level ;-)

avatarsupporter
sent on April 11, 2021 (11:12)


This comment is too long to be automatically translated, so it will be shown in its original language (Italian)  

Click here to translate the comment in English [en]


" il primo c'è una dominante rossiccia nella galassia, le zone esterne dovrebbero essere tendenzialmente blu
(immagino che sia una ripresa in colori veri senza h-alpha, giusto?)
"

Si, una normale ripresa a colori con filtro L-Pro, niente Ha... ho notato anch'io quella dominante, non so da dov'è saltata fuori, magari rifaccio tutto il processo di calibrazione ed integrazione e vediamo che ne esce! anche perché il segnale non dovrebbe essere pochissimo, sono 60x300s

" il secondo (minore) sul fondo cielo un po' troppo annerito rispetto alle stelle, le fa sembrare un po' troppo contrastate.
è una delle cose più difficili da fare, rendere le transizioni delle stelle morbide, tirare fuori tutto il segnale che c'è e non evidenziare il rumore
"

E pensa che l'ho lasciato un po' grigio! MrGreen su di un gruppo di astrofili su FB mi hanno ripreso perché "le galassie si fanno con fondo cielo nero!" ok, io abituato alle nebulose dove lo lascio molto chiaro, mi son detto: si farà così! MrGreen

Adesso ci gioco ancora un po' e magari metto la versione V3 ;-)

EDIT: Dimenticavo, grazie dei suggerimenti Stefano!


avatarsenior
sent on April 11, 2021 (11:23)


This comment is too long to be automatically translated, so it will be shown in its original language (Italian)  

Click here to translate the comment in English [en]


Il segnale c'è e si vede, anche le zone esterne della galassia ci sono, solo non sei riuscito ad estrarle completamente, ma davvero... mica è facile

Secondo me la calibrazione è andata un po' storta. per avere risultati consistenti ti consiglio di studiarti un po' la risposta colore del tuo setup di ripresa e poi fissarlo, non lasciando dare pesi automatici ai colori. ovviamente se hai più setup differenti vanno caratterizzati tutti. è un lavoraccio ma poi ripaga.
Se hai una buona base di partenza dopo è "solo" una lotta contro l'inquinamento luminoso


il colore del fondo cielo può essere nero o chiaro, non c'è un "obbligo", ma più un gusto personale
è più il contrasto che disturba. se ci fai caso si passa dal "nero" alla "luce" senza sfumatura. è quello che salta all'occhio.
Chiaramente questo ti aiuta a rendere i colori delle zone luminose belli saturi, ma ti fa perdere dettagli deboli e rende le stelle un po' innaturali



" EDIT: Dimenticavo, grazie dei suggerimenti Stefano!"
Ci mancherebbe, comunque prendili sempre per quel che valgono, opinioni e pareri personali


avatarsupporter
sent on April 11, 2021 (11:27) | This comment has been automatically translated (show/hide original)

[QUOTAS] We would miss them, however you always take them for what they are worth, personal opinions and opinions [/QUOTAS]
We would miss it I say it! you have to slaughter my images, otherwise as a better!?! :-D
As far as colors are concerned, do I think there is a system for calibrating them using known stars?

avatarsenior
sent on April 11, 2021 (11:39) | This comment has been automatically translated (show/hide original)

it is correct, it is called the method of G2V stars
They are stars of spectral class G (G2V precisely) that are considered "white" because they are very similar in color to our sun
If you look a little on the net you find documentation and also a catalog to find them
It is not the only method but certainly a good starting point

avatarsupporter
sent on April 11, 2021 (11:51) | This comment has been automatically translated (show/hide original)

Thank you for your always valuable advice... however I am trying again to redo the integration from the beginning ;-)

avatarsenior
sent on April 11, 2021 (12:15) | This comment has been translated

Great!

avatarjunior
sent on April 11, 2021 (12:22) | This comment has been automatically translated (show/hide original)

Great good picture.
I'm not experienced and I'd love to start doing them but I don't have time for now.
Also great and helpful tips you received. You learn a lot.
Thane everyone so both to show the photo that I really like and to learn from the tips you receive.
Thane Zeppo and Thank you Stefano!!
Max property

avatarsupporter
sent on April 11, 2021 (12:36) | This comment has been automatically translated (show/hide original)

Please Max ;-)

avatarsupporter
sent on April 11, 2021 (16:55) | This comment has been automatically translated (show/hide original)

The epidemic has spread a lot: almost all of Andromeda is in the red zone :-o .
:-D
Howy is a great conversation between you and Stefano_C about shooting techniques and the need to study "color" in relation to the tool using reference star categories.

avatarsupporter
sent on April 11, 2021 (19:02) | This comment has been automatically translated (show/hide original)

What do you say? Good third? ;-)
[IMG2]3919596[/IMG2]

avatarsenior
sent on April 11, 2021 (20:09) | This comment has been automatically translated (show/hide original)

Great job, congratulations!

avatarsupporter
sent on April 11, 2021 (20:11) | This comment has been translated

Thank you!


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