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  1. Galleries
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  3. Astrophotography
  4. » Orion Nebula (M42)

 
Orion Nebula (M42)...

Astrofotografia

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Orion Nebula (M42) sent on January 04, 2013 (13:13) by Vesperwind. 6 comments, 1878 views. [retina]

, 1.3 sec f/2.8, ISO 800, tripod.

Questa è la mia prima prova di "stacking". Ho sommato 54 lightframes (da 1.3 sec. Ciascuno), 10 darkframes e 10 bias con Deep Sky Stacker. Successivamente ho modificato qualcosina con Canon Digital Photo Professional che è l'unico programma che per ora ho a disposizione per fare l'edit. Spero ci siano tanti consigli, suggerimenti e critiche perché sono decisamente intenzionato a migliorare :) (Specie da Astrochiara, Astrotrezzi, Elio e molti altri che seguo regolarmente in questo forum). Un saluto a Beppe!! :D P.s. Le foto sono state scattate a 200mm



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avatarsenior
sent on January 04, 2013 (13:22) | This comment has been automatically translated (show/hide original)

Excellent result for me! Hello ..

avatarsenior
sent on January 04, 2013 (18:28) | This comment has been automatically translated (show/hide original)

You possino Vesper! :-D So you got it! Grandeee! :-) Then with the 200 was still more work :-) Now we are waiting for comments by amateurs:-D:-D

avatarsenior
sent on January 05, 2013 (21:06) | This comment has been automatically translated (show/hide original)

It 's done on a tripod fixed, right? Apart from the issues that affect tracking, which can only be resolved through a momntatura Equatorial possibilememte motorized, the defect that stands out most in this picture is the excess of contrast, which made you very dark sky background and star completely white and saturated. On these two things can work in post production, but looking for a program a little 'more powerful than what you used. If you did not complete photoshop, photoshop element already okay to start. You must be able to work with levels and curves, and you must have the ability to selectively choose areas to work with layers (which unfortunately in the Italian version of PS are also their chimati levels, generating a bit 'of confusion).

The source images are jpg or raw? Better still use theRaw, opening possibly with the astronomy program, which usually does not introduce any kind of manipulation opening (which instead adobe camera raw ago, though it seems!).

If you like Madami in private the image obtained after stacking, without any other processing and uncompressed, so I try to "mess up" a bit '!

hello

Clear


avatarjunior
sent on January 06, 2013 (11:50) | This comment has been automatically translated (show/hide original)

Hello Chiara! First of all, thanks for the comment. I do a lot good to know they can count on expert advice. The equatorial mount is already putting into account, most likely buy it, but later (either because right now I put a little 'of pennies aside, is because I want to go step by step and achieve a good level of each ... well ... now I'm stacking the step:-D if you think it's a method a little 'fallacious correct me as well)
So: about excessive contrast I have to do a mea culpa since it certainly was not me that I messed up a bit 'with the editing of both dpp and on dss likely to bring out a little' colors of the nebula. Actually I was often asked, how do you know when the editing of your photos is done right? :-)
Yes, photoswere taken with a tripod and unfortunately the source images are jpeg. I am aware that this has resulted in a loss of information, but unfortunately the first time I tried to open my RAW with deep sky stacker gave me a very strange problem, that I opened the image in its original size, but as if was a narrow vertical column (losing the large left and right side of the photo). I did not understand why, but after feeling the jpeg with the problem disappeared. Unfortunately they are in the very early weapons so I used deep sky stacker because I saw a tutorial on youtube and I limited myself to follow the instructions that there were explained (http://www.youtube.com/watch?v=e0JSTF8SGi4). For now I thought I was going into this a somewhat 'vulgar:-D until I had good depth reading Comolli and chives (I). Photoshop cantry it, but I do not know if I would be able to use it ... :-|

As soon as possible I will be happy to send you a picture so I do see the potential well is that the right parameters!

Ps I'll take a moment to ask you a little question that I have long been buzzing in my head but in your opinion, how is it possible (with the equipment I own you see here) to be able to take the horse head nebula, the barnard's loop and this kind of thing weaker (if that is possible)?

Thanks again

avatarsenior
sent on January 06, 2013 (21:00) | This comment has been automatically translated (show/hide original)

You are right to start degrees, starts by experience that when you need then the most important tools.
If you have trouble managing raw with deep sky stacker (which I never used and do not know) you can try Iris: graphics and controls are raw data from the keyboard, but it provided help very well made and just learn 4 or 5 essential commands. Iris I think it's good to start because nothing is automatic. Can be given in a single string commands throughout the development process, but I have always preferred to run a command at a time, to make me realize what I was doing well, so in my opinion, in addition to work well, it is also useful to learn . It is also free.

Photoshop I can try it, but I do not know if I would be able to use it ...

Do not be afraidPS! ;-) It can strike fear because it is one of the top photo editing, but in fact here you just learn a bunch of things useful and not at all complicated. Take a look at tutorial Juza, the things he described applies also all'astrofotografia, although in a different way than in the daytime photograph.

With the equipment you use, you can resume the Barnard Loop and even the Horsehead, if you go to see in the gallery of Beppe Reda is un'eleborazione I did a number of his shots and these objects are seen. Clearly the limits of not being able to chase and all that, but you can see and be able to get with so little instrumentation is certainly an incentive to want to do better.

hello!

Chiara

avatarsenior
sent on February 10, 2013 (2:25) | This comment has been automatically translated (show/hide original)

I am not versed in astro, but with the 200 I do not think it's easy :-)


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