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

 
Andromeda...

Astrofotografia

View gallery (19 photos)

Andromeda sent on November 17, 2015 (13:32) by Valentina Rech. 17 comments, 1854 views. [retina]



Somma di 27 foto da 60sec. - 200mm - ISO800 - f3.2 / 17 dark / 29 bias / 25 flat Canon 500D, Canon 70-200mm, Skywatcher Star Adventurer



View High Resolution 13.6 MP  



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avatarjunior
sent on November 17, 2015 (15:31)


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...complimenti , ottima ripresa, elaborazione !! il 70/200 è veramente un ottimo obbiettivo anche in astrofotografia...ciao


... Congratulations, excellent recovery, processing !! the 70/200 is a really good goal in astrophotography ... hello

avatarjunior
sent on November 17, 2015 (16:35)


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Grazie! ..E ce l'ho anche solo in prestito quell'obiettivo, ma ammetto che mi ci sto trovando bene!

Thank you! ..and I have just borrowed that goal, but I admit that I am finding it good!

avatarjunior
sent on November 17, 2015 (16:48)


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Ottima ripresa!
Senti una cosa...
Con lo Star Adventurer a 200mm (320mm FF) quanti minuti riesci a fare di posa al massimo?

Good shooting!
Feel a thing ...
With the Star Adventurer to 200mm (320mm FF) how many minutes you can make the most of the laying?

avatarsupporter
sent on November 17, 2015 (17:43)


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Nulla da dire, grande scattoSorriso

Nothing to say, great shot :-)

avatarsenior
sent on November 17, 2015 (17:48)


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Davvero bella!!! Non sai che voglia ho di fare una foto del genere...però mi mancano sia l'inseguitore che il 200mm luminoso!! MrGreenMrGreen Complimenti

Really nice!!! You do not know that I want to take a picture like that ... but I lack both the tracker that the 200mm light !! -D: -D Congratulations

avatarjunior
sent on November 18, 2015 (10:40)


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" Davvero bella!!! Non sai che voglia ho di fare una foto del genere...però mi mancano sia l'inseguitore che il 200mm luminoso!! MrGreenMrGreen Complimenti"
Ma come fai?Eeeek!!!

Really beautiful !!! You do not know that I want to take a picture like that ... but I lack both the tracker that the 200mm light !! MrGreenMrGreen Congratulations

But how do you do? Wow!

avatarsenior
sent on November 18, 2015 (10:59)


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" Ma come fai?Eeeek!!!"

In che senso???

But how do you do? Eeeek !!!


What do you mean???

avatarsenior
sent on November 18, 2015 (11:09)


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Questa foto e' un'emozione per chi la guarda,non oso pensare cosa prova chi la scatta! Complimentissimi! Ciao. Simone.

This picture 'emotion for the viewer, I dare not think what proves who the snaps! Complimentissimi! Hello. Simone.

avatarjunior
sent on November 18, 2015 (11:59)


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" Con lo Star Adventurer a 200mm (320mm FF) quanti minuti riesci a fare di posa al massimo? " io uso il 200mm su apsc, quindi si, equivale ad un 320mm..
mi pare due minuti, o anche tre massimo, dipende quanto allinei bene, e soprattutto il margine di errore che uno si pone..
comunque so che nello star adventurer puoi anche aggiungerci una camera guida, e penso così tu possa allungare le pose.. ma non ci ho mai provato!

With the Star Adventurer to 200mm (320mm FF) how many minutes you can make the most of the laying?
I use the 200mm of APSC, then, is equivalent to a 320mm ..
I think two minutes, or even three maximum, it depends on how much aligns well, and especially the margin of error that one arises ..
however I know that in the star adventurer can add us a room guide, and so I think you can stretch the poses .. but I never tried it!

avatarjunior
sent on November 18, 2015 (12:00)


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Davvero grazie mille a tutti!!

Really thank you very much to all !!

avatarjunior
sent on November 18, 2015 (12:04)


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@ Valentina Rech

Grazie mille Valentina per le tue info.
Io ti posso dire che sono riuscito a raggiungere gli 8 minuti di posa con un 50mm (80mm FF) senza guida.

Avevo fatto anche altre prove con una lente 300mm su FF e al massimo avevo raggiunto i 200 secondi di posa senza guida. ;-)

@ Valentina Rech

Thanks a lot for your info Valentina.
I will say that I managed to reach the 8 minutes of installation with a 50mm (80mm FF) without guidance.

I had other tests with a 300mm lens on FF and maximum had reached 200 seconds of laying without guidance. ;-)

avatarjunior
sent on November 18, 2015 (12:08)


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Grazie Simone, è vero, pensare a quante cose incredibili ci sono, e provare a fotografarne alcune, è davvero entusiasmante!!

Thanks Simone, it is true, think about how many amazing things there are, and try to photograph some, it is very exciting !!

avatarjunior
sent on November 18, 2015 (12:09)


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" Io ti posso dire che sono riuscito a raggiungere gli 8 minuti di posa con un 50mm (80mm FF) senza guida.

Avevo fatto anche altre prove con una lente 300mm su FF e al massimo avevo raggiunto i 200 secondi di posa senza guida.
"

Addirittura!! non venivano neanche un po' mosse le stelle?
Dovrei provare in cieli più bui, perché da me se aumento così mi si saturano le foto


I will say that I managed to reach the 8 minutes of installation with a 50mm (80mm FF) without a guide.

I had other tests with a 300mm lens on FF and maximum had reached 200 seconds of laying without guidance.

Even!! They were not even a little 'moves the stars?
I should try in the darkest skies, because if I increase so I saturate photos

avatarjunior
sent on November 18, 2015 (12:17)


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No Valentina, le stelle erano puntiformi praticamente perfette.
Ecco le combinazioni che uso col mio 50mm f/1.4 su EOS 1200D:

f/2.8
ISO 200
300 sec

f/2
ISO 200
240 sec

f/3,2
ISO 100
480 sec

La polare la allineo a occhio, dopo aver consultato la sua posizione su STELLARIUM oppure con la App per iPhone PolarAlign (mi sa che c'è anche per Android). ;-)



No Valentina, the stars were almost perfect point.
Here are the combinations that I use with my 50mm f / 1.4 on the EOS 1200D:

f / 2.8
ISO 200
300 sec

f / 2
ISO 200
240 sec

f / 3.2
ISO 100
480 sec

The polar align the eye, after consulting its position on STELLARIUM or with the App for iPhone PolarAlign (I know that there is also for Android). ;-)


avatarjunior
sent on November 18, 2015 (13:24)


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Io userei iso un po piu alti forse, comunque a 50mm capisco che i tempi li possa allungare... a 300mm con 200sec. mi sembra tanto!.. ma meglio così, vorrà dire che hai allineato bene! :)

I would use a little more high iso perhaps, but at 50mm understand that time can stretch them ... to 300mm with 200sec. I think so! .. but better this way, it will mean you have lined up well! :)

avatarjunior
sent on November 18, 2015 (14:01)


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Basta controllare l'istogramma RGB Valentina!
Se sta al centro significa che l'esposizione è corretta.

Perché quindi alzare gli ISO con aumento di rumore?

In ogni caso appena ho tempo provo magari a 400 ISO

Io riesco a tenere gli ISO bassi perché posso usare diaframmi davvero molto aperti con la lente usata.


Just check the RGB histogram Valentina!
If you are in the middle it means that the exposure is correct.

Why then raise the ISO with noise increase?

In any case when I have time I try maybe to 400 ISO

I can not keep the ISO low because I can use diaphragms very open with the lens used.

avatarjunior
sent on November 20, 2015 (13:39)


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usando iso bassi, e quindi aumentando i tempi delle pose, comunque avrai del rumore termico dovuto alla temperatura del sensore che aumenta.. quindi penso convenga una via di mezzo... tipo 400-800iso...
poi il rumore un po' glielo togli con i dark ecc..
però comunque ne so fin là..

using iso low, and therefore increasing the time of the poses, however, I'll thermal noise due to the sensor temperature increases .. so I think agreeing upon an in between ... kind 400-800iso ...
then the sound a bit 'him take off with the dark etc ..
But still I know that far ..


RCE Foto

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