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  1. Galleries
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  3. Astrophotography
  4. » The Great Orion Nebula

 
The Great Orion Nebula...

Astrofotografia II

View gallery (26 photos)

The Great Orion Nebula sent on December 21, 2012 (15:35) by Astrogallery. 34 comments, 4486 views.

Posa B f/5.0, ISO 800, tripod.

Canon 450D (mod. Baader)+ Newton GSO 150/750 su HEQ5 PRO; Somma di 20 scatti da 360 sec a 800ISO + 15 darks + 10 flats + 5 scatti da 60 sec a 800ISO e 5 scatti da 15 sec a 400ISO ( gli scatti con esposizioni più corte servono per non saturare il nucleo che è molto luminoso). Allineamento e calibrazione con il software DSS (deep sky stacker) e elaborazione con Phostoshop CS6.



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avatarsenior
sent on December 21, 2012 (15:50) | This comment has been automatically translated (show/hide original)

Bellissima!

avatarsenior
sent on December 21, 2012 (15:57) | This comment has been automatically translated (show/hide original)

Although it is not my field, I appreciate so much. Compliments

avatarjunior
sent on December 21, 2012 (16:10) | This comment has been automatically translated (show/hide original)

Thank you!

avatarsenior
sent on December 21, 2012 (16:36) | This comment has been automatically translated (show/hide original)

beautiful shot :-) perhaps missing some shorter posing for the area of ??the trapezoid .. but the picture is very beautiful

user15434
avatar
sent on December 21, 2012 (17:47) | This comment has been automatically translated (show/hide original)

Hello Astrogallery,
the image of M42 is very beautiful. Too bad for the central region burned. Or you may take multiple poses fast as recommended by Canopo70 or if you use IRIS to stretching or dynamic (always with IRIS) add (with HDR or Photoshop) more poses with different cuts of the histogram.
I will never stop to tell you that your Newton is a blast:-D!
A salutone again congratulations for the shot and Happy Holidays,
David

avatarsenior
sent on December 21, 2012 (17:55) | This comment has been automatically translated (show/hide original)

Spectacular, very good .... I do not see highlights, plenty of over the limit! Wow!

avatarjunior
sent on December 21, 2012 (19:16) | This comment has been automatically translated (show/hide original)

very nice compliments, I would try to reduce the noise and recover the trapeze as they have sugerito ;-)
never tried Iris? : Fconfuso:

avatarsenior
sent on December 21, 2012 (22:32) | This comment has been automatically translated (show/hide original)

incredible

avatarsenior
sent on December 21, 2012 (22:54) | This comment has been automatically translated (show/hide original)

Truly three-dimensional shooting this! What can I say ... great job!

avatarjunior
sent on December 22, 2012 (13:36) | This comment has been automatically translated (show/hide original)

I ask two things?
1) use a coma corrector that?
2) that the guidance system do you use?

Thank you, Fabrizio.

avatarsenior
sent on December 22, 2012 (19:09) | This comment has been automatically translated (show/hide original)

Bellisima.
can I ask you a big favor?
You can post a normal single frame (from 360 s to 800 iso) without processing?
when I snap over to a minutoe half the photos I all become very noisy with a red color.
I do not know if it is normal.
hello

avatarjunior
sent on December 22, 2012 (23:56) | This comment has been automatically translated (show/hide original)

Andrea I'm afraid you have serious problems of light pollution, try to do some shooting in dark places really, maybe in the mountains, in good condition at f5 shot with ISO 1600 and 10/12 minutes of exposure 8-)

avatarjunior
sent on December 23, 2012 (13:40) | This comment has been automatically translated (show/hide original)

Thank you all for the comments! Best wishes and happy holidays to all!
I respond in order.
@ Canopo70

We've tried to make short exposures, but I had to make them even shorter (by type stuff 100iso per core) I've noticed under development. But the end result tuttosommato I like even if it is well balanced exposure in the center than at the edge of the nebula.

@ Astrotrezzi
Tips accepted, thank you very much! Anyway from my monitor does not see it burnt the center.
I only used photoshop for processing because I know better use than the others. I followed the guidance of Lorenzo of red to not saturate the core. Iris unfortunately I have used very few times, and I should devote more time to impare to use. Now I have very little time instead .. :-(
They are very attached to my newton! It performs very well! :-)

@ _elio_
no as I said above I do not know how to use Iris. One day I'll put rivaluterò and maybe ..

avatarjunior
sent on December 23, 2012 (13:47) | This comment has been automatically translated (show/hide original)

@ Fabercom
1) Use the baader mpcc. Corrects very well my f5 to the edges. A very good purchase, highly recommended.
2) For guidance on using an inexpensive rifratorre SW 70/500 with a MagZero MZ5 (or monochrome). The refractor focuser has a very good dancer so you have to fix the locking screws. Sometimes squeezing too much change even slightly the focus. I got it because of its low price. Anyway it does its job, though now having to rethink a first purchase buy something more solid and precise. How to use the program collaodato and easy phd. I have always had a great time. With this system arrive 10 minutes of laying individual stationed well if the telescope.

avatarjunior
sent on December 23, 2012 (13:59) | This comment has been automatically translated (show/hide original)

@ Chiodi.andrea
Confirm the problems of light pollution described in the response of _elio_.
Myself from my site I have a problem of light pollution. For now I do not care in the sense that I have not yet purchased a concrete filter. Now a friend of mine lent me one, but I have not had to try it. Surely this increases both situational with a filter like that. On the web you can find several comparisons with and without filter.

Here's my shot from 6 minutes 800ISO (reduced to 2000px):




Presents problems of light pollution, but for now I try to recuparare as possible through photoshop.
In any case, the best solution would move under skiesblinds. But it is not always possible unfortunately.

user15434
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sent on December 23, 2012 (14:05) | This comment has been automatically translated (show/hide original)

Hello Astrogallery,
now that I've calibrated the monitor of my laptop does not seem so burned even if something is missing ... structures of the central part seem low contrast. If you want a comparison in order to better understand what I mean, I am attaching my M42 (obtained thanks to the advice of users juzani):



Obviously prefer your colors ;-) but I will have to do it again with my mythical Newton 150mm f / 5 (bought after seeing your!) ...
see you soon,
David

avatarjunior
sent on December 23, 2012 (14:16) | This comment has been automatically translated (show/hide original)

Hello Astrotrezzi,
I understand what you mean. In the central part needless detail than yours. Yours is perfectly balanced exposure level in the nucleus and details. Very nice compliments. My I have not been able to recupare well because I only did shots from 6 min, 1 min and 15 sec. I had to put an intermediate such as 3 minutes, and then even lower for the details of the harness.
Anyway if you look at the image of a single exposure to 6 min I posted, so you realize where I started. Even you have taken in similar conditions of light pollution?

user612
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sent on December 23, 2012 (15:14) | This comment has been automatically translated (show/hide original)

I do not understand anything of this kind of photos, but this is fantastic, which will leave one speechless. Hello

avatarjunior
sent on December 23, 2012 (15:45) | This comment has been automatically translated (show/hide original)

Thanks George!

user15434
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sent on December 23, 2012 (17:21) | This comment has been automatically translated (show/hide original)

Hello Astrogallery,
the picture from where I started I was certainly less polluted and this shows you how good you were to pull out the colors from all that pink ;-). I had done 9 "stop" and perhaps that is what has allowed me to not lose too much in the middle.
Congratulations again and I can not imagine that you can pull out masterpiece from less polluted skies wow!
David


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