RCE Foto

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  1. Galleries
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  3. Astrophotography
  4. » Untitled Photo

 
Untitled Photo...

Cielo Notturno

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Untitled Photo sent on November 27, 2011 (13:45) by Lupo Manaio. 8 comments, 1137 views.



M42 in Orione: Canon EOS 40D con 70-200 f2.8 a 200mm su montatura GM8, singola posa da 90 sec. f4 500 ISO. leggera sistemata con Lightroom





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avatarsenior
sent on November 27, 2011 (20:30)


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Un ottimo singolo frame! La montatura ce l'hai già, quindi...sotto con le pose! vedrai che cosa ti esce! L'ottica mi sembra molto buona.

Chiara

A great single frame! The mount you have it already, so ... below with the pose! you'll see what comes out! The lens seems very good.

Clear

avatarjunior
sent on November 27, 2011 (21:18)


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Grazie mille Chiara per l'incoraggiamento!! ora considera che questo è un forte crop, perche 200mm sono un po' pochini, ma per adesso devo fare esperienza così. Pulirò gli ingranaggi della montatura per avere meno pose da scartare e poi devo procurarmi l'aggeggio per fare le pose flat, (ora vedo alla fiera di forlì cosa trovo). Appena pronto tornerò in quota a riprendere ancora... le tue foto mi fanno troppa golaMrGreen
Ciao
Enrico

Thank you Clare for the encouragement! now considers that this is a strong crop, because 200mm is a bit 'few, but for now I have to experience it. 'll Clean the gears of the frame to have less unwrapped and then put the darn thing do I need to do the poses flat, (now I see what I find at the fair forlì). Just come back ready to share a resume yet ... your photos make me too much throat:-D
Hello
Henry

avatarsenior
sent on November 28, 2011 (18:02)


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Per le flat mi sono fatta con poca spesa (.ca 15 euro) una scatola tipo questa:

www.astrogb.com/art_flatbox.htm

il risultato sembra una scultura pop-art, ma funziona!

ciao!

Chiara

For the flat I got cheaply (. Approx 15 euro) a box like this:

www.astrogb.com/art_flatbox.htm

the result looks like a sculpture, pop art, but it works!

hello!

Clear

avatarjunior
sent on November 29, 2011 (18:33)


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complimenti per lo scatto, ma io con il 100 400 posso fare queste foto, senza inseguimento perche ce l'ho ma non so come utilizzarlo

congratulations for the shot, but I can do with 100 400 of these photos without tracking because I have it but do not know how to use it

avatarjunior
sent on November 30, 2011 (11:36)


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Grazie Chiara per l'idea, vedo se riesco a combinarlo anche io un aggeggio simile...
Karya, grazie per l'apprezzamento!! per rispondere alla tua domanda ti dico quello che so per la mia poca esperianza. Il pompone a 5.6 è già abbastanza buio di suo per fare pose brevi, e considera che per non avere residui di aberrazione cromatiche devi ulteriormente chiuderlo diciamo a f8. Per la foto che ho fatto io, ho usato il 70-200 2.8 L IS USM II ma ho dovuto chiudere a f4 perchè a 2.8 non è apocromatico...quindi con un rapporto focale di f8 o fai pose molto lunghe (90 secondi a f4 è come 360 a f8) oppure ne fai molte di più con tempi più brevi. In ogni caso con focale di 400mm non ti puoi esimere dal fare pose inseguite "guidate" perche le montature di noi comuni mortali se le lasci inseguire da sole, oltre un certo limite pur se ben stazionate, sbagliano l'inseguimento (lo sbagliano eccome!!!). Ora, siccome mi sono dato all'astrofotografia da poco più di un mese, per quanto riguarda le tecniche di guida preferisco che ti risponda chi è più esperto di me.
Comunque la risposta è che si anche con il pompone puoi fare foto così, ma anche molto meglio io direi!!
Ciao
Enrico

Thanks Clare for the idea, I'll see if I can combine also a contraption like that ...
Karya, thanks for the appreciation! to answer your question I'll tell you what I know for my little esperianza. The POMPONE to 5.6 is already dark enough for her to make short exposures, and considers that to have no residual chromatic aberration must further say close to f8. For the photo that I did, I used the 70-200 2.8 L IS II USM but I had to close because f4 to 2.8 is not apochromatic ... so with a focal ratio of f8 or do long exposures (90 seconds f4 is like 360 ??at f8) or do you do a lot more with less time. In any case, with a focal length of 400mm you can not exempt from making poses chase "guided" because the frames of us mere mortals if you leave them alone pursue, beyond a certain limit though well stationed wrong tracking (the wrong and how! !). Now, since I have given all'astrofotografia for a little over a month, with regard to driving techniques that will meet those who prefer & flaggingI, more experienced than me.
However, the answer is that even with the POMPONE can take pictures like that, but also much better I would say!
Hello
Henry

avatarsenior
sent on January 03, 2012 (20:39)


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Esatto Lupo su pose molto lunghe senza inseguimento si rischia di sbagliare Per quel poco che ho fotografato la notte, io utilizzavo come guida un rifrattore da 80 mm (per intenderci tipo Orion), a lui era affidato il compito di inseguire, col C8 (abbinato alla fotocamera, ai tempi una 350D, o al CCD)effettuato la ripresa delle immagini. Ho un Sigma 70 - 200 F2.8 e un 120 - 400 ma con quest'ultimo le pose devono essere brevi e ripetute.

Exactly Wolf on long exposures without tracking is likely to go wrong for the little that I photographed the night, I was using as a guide a 80 mm refractor (Orion type for instance), he was entrusted with the task of pursuing, with C8 (combined the camera, at the time a 350D, or CCD) carried out taking pictures. I have a Sigma 70-200 F2.8 and a 120-400 but it poses should be short and repetitive.

avatarjunior
sent on October 25, 2012 (12:13)


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wow!


Ps...grazie dei tuoi consigli sulla 5D che mi hai dato tempo fa..ora è tra le mie mani e ne sono veramente soddisfatto!;-)
Ciao!

wow!


Ps ... thanks for your advice on the 5D you gave me long ago .. now it is in my hands and I am very satisfied! ;-)
Hello!

avatarsenior
sent on June 13, 2013 (18:33)


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Varamente bellissima , non è il mio genere ma mi piace

Varamente beautiful, is not my thing but I like it


RCE Foto

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