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  1. Galleries
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  3. Astrophotography
  4. » orion nebula

 
orion nebula...

astronomia

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orion nebula sent on December 28, 2013 (14:31) by Massimo Busato. 7 comments, 764 views.

3.2 sec f/11.0, ISO 8000, tripod.

prima foto che scatto con un telescopio, scattata da Urano (VE) una zona di alta densità luminosa, attrezzatura usata cavalleto con testa equatoriale celestron serie gt motorizzata in entrambi gli assi, rifrattore skywacter diametro 90 x 900 f11 d800E co scatto remoto , fotografia composta di scatto unico elaborata con photoshop cs6





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avatarjunior
sent on December 28, 2013 (16:11)


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scusa ma perché è tutta verde? E gli aloni blu attorno alle stelle cosa sono?

sorry but why is all green? And the blue halos around the stars what are they?

user28347
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sent on December 28, 2013 (18:11)


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è la messa a fuoco non precisissima,riprova con vari scatti cambiando poco il fuocheggiatore,peccato perchè la nebulosa è bella come un fiore,ciao

the focus is not very accurate, try again with different shots just by changing the focuser, shame because the nebula is as beautiful as a flower, hello

avatarjunior
sent on December 28, 2013 (18:53)


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grazie del consiglio, purtroppo su questo campo di fotografia sono scarso
questa è la prima fotografia in assoluto che faccio con un telescopio ,
il telescopio che ho da quando l'ho portato a casa per un motivo o altro non mi sono mai interessato a pusarlo,
l'alt giorno l'ho tirato fuori dalla cassa e mi sono imposto di usarlo al fine di sfruttarlo per fare astrofotografia


grazie di nuovo Massimo Busato

thanks for the advice, unfortunately on this field of photography are scarce
this is the first photograph ever do that with a telescope,
the telescope that I have since I brought home for one reason or another I never interested in pusarlo,
alt day I pulled it out from the case and I forced myself to use it in order to use it to do astrophotography


thanks again Massimo Busato

user28347
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sent on December 28, 2013 (18:58)


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di niente ,controlla anche se è collimato,sfoca una luce puntiforme lontano e vedi se fa un cerchio il piu possibile rotondo ,se è ovale allora bisogna sistemarlo .guarda su internet per eventuale collimazione

anything, check if it is collimated, a point light blurs away and see if it makes a circle round as much as possible, if it is oval then you have to fix it. looking on the internet for any collimation

avatarsenior
sent on January 02, 2014 (10:49)


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" controlla anche se è collimato"
non credo che un rifrattore skywatcher si possa collimare... Comunque il problema della ripresa non è la collimazione del telescopio e nemmeno la messa a fuoco (che non è così disastrosa, anche se migliorabile) ma il fatto che sia completamente verde! Gli aloni blu intorno alle stelle sono dovuti all'aberrazione cromatica del rifrattore, però per quanta aberrazione cromatica ci possa essere così verde non dovrebbe venire! Ora è da capire se è un errore di elaborazione o un effetto artistico dell'autore. Se è un effetto voluto...ognuno ha i suoi gusti!;-)

ciao

Chiara

also checks whether it is collimated

I do not think you can collimate a refractor SkyWatcher ... However, the problem of the recovery is not the collimation of the telescope and even the focus (which is not so disastrous, although improved) but the fact that it is completely green! The blue halos around stars are due to chromatic aberration of the refractor, but for how much chromatic aberration there could be so green should not come! Now it is to understand if it is a processing error or an artistic effect of the author. If it is a desired effect ... everyone has their own tastes! ;-)

hello

Clare

user28347
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sent on January 02, 2014 (12:17)


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gia chiara hai ragione ,a me mi faceva i bordi blu alle stelle con il 77 f1.8 che costa 1100 euro ,mi dicevano che è una aberrazione cromatica dell'obiettivo ,ciao

already clear you're right, I made me blue borders to the stars with the 77 f1.8 which costs 1100 Euros, they told me that it is a chromatic lens aberration, hello

avatarjunior
sent on January 02, 2014 (21:47)


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grazie dei commenti Ciara e Sergio questa e la prima foto scatto con un telescopio ,
il rifrattore cmd detto non si può collimare ,
ho provato con altri soggetti ma ha molta aberrazione , è a basso costo,
per il verde devo aver sbagliato io .
non sono più scatti messi assieme ma uno solo
spero di migliorare con i prossimi scatti .

Buon Anno a tutto il forum

Massimo Busato

thanks for comments and Sergio Ciara and this the first photo shooting with a telescope,
the refractor cmd said you can not coincide,
I tried with others but has a lot of aberration, is low cost,
I must have been wrong for the green myself.
are not more shots put together but only one
I hope to improve with the next shots.

Happy New Year to all the forum

Maximum Busato


RCE Foto

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