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Forums Lobby MASTER YOUR VISION - BY SPECIALTY Astrophotography topic #967
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Subject: "M42 Orion Nebula" Previous topic | Next topic
RABaker Registered since 01st Oct 2003Tue 16-Jul-13 05:29 PM
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"M42 Orion Nebula"


Sunnyvale, US
          

I captured this image some time ago, but I recently re-processed it with Pixinsight and it came out better. Taken with an Orion 8" R-C scope and an QHY-8 one-shot color CCD camera. This is a stack of 66 subexposures of 6 minutes captured over two nights.





Thanks for looking,
Richard

Attachment #1, (jpg file)

  

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Replies to this topic
Subject Author Message Date ID
Reply message RE: M42 Orion Nebula
lastdaylight Gold Member
19th Jul 2013
1
Reply message RE: M42 Orion Nebula
RABaker
19th Jul 2013
2
     Reply message RE: M42 Orion Nebula
nrothschild Silver Member
22nd Jul 2013
3
          Reply message RE: M42 Orion Nebula
RABaker
22nd Jul 2013
4
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RABaker
23rd Jul 2013
5
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lastdaylight Gold Member
26th Jul 2013
6
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RABaker
31st Jul 2013
7
                              Reply message RE: M42 Orion Nebula
lastdaylight Gold Member
31st Jul 2013
8
                              Reply message RE: M42 Orion Nebula
nrothschild Silver Member
01st Aug 2013
9
                                   Reply message RE: M42 Orion Nebula
RABaker
02nd Aug 2013
10

lastdaylight Gold Member Laureate Ribbon awarded for winning in the Best of Nikonians 2013 images Photo Contest Nikonian since 09th Dec 2007Fri 19-Jul-13 03:22 AM
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#1. "RE: M42 Orion Nebula"
In response to Reply # 0


Dallas, US
          

That is certainly interesting processing, with a beautiful result. Definitely hang it on the wall!

Mark Smith
Just like I previsualized it, more or less...

My Nikonians Gallery

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RABaker Registered since 01st Oct 2003Fri 19-Jul-13 05:19 AM
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#2. "RE: M42 Orion Nebula"
In response to Reply # 1


Sunnyvale, US
          

Thanks Mark. Actually the image shown here is sharper and more contrasty than it was on my computer. I don't know why that happened, but I'm not sure I like it as well. I didn't do anything but resize my TIFF file and then save it as a JPEG to fit the image upload requirements - and, at least on my computer, the file did not gain sharpness or contract that I can detect here at home. 'Tis a mystery...

Thanks again,
Richard

  

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nrothschild Silver Member Neil is an expert in several areas, including camera support Nikonian since 25th Jul 2004Mon 22-Jul-13 07:34 PM
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#3. "RE: M42 Orion Nebula"
In response to Reply # 2


US
          

Great image! Where an image looks different in a browser, usually the color profile is to blame. You very likely processed in Adobe RGB or some other color profile other than sRGB. All or most browsers only support sRGB.

_________________________________
Neil


my Nikonians gallery.

  

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RABaker Registered since 01st Oct 2003Mon 22-Jul-13 10:20 PM
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#4. "RE: M42 Orion Nebula"
In response to Reply # 3


Sunnyvale, US
          

Neil,

Thanks for the kind comment on the image.

You are right that I normally process in Photoshop in the Adobe RGB color space, but I *think* I converted to sRGB when I saved the smaller file. I will have to boot up my main computer and check what I did. Thanks for mentioning this point. Always learning...

Richard

  

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RABaker Registered since 01st Oct 2003Tue 23-Jul-13 04:56 AM
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#5. "RE: M42 Orion Nebula"
In response to Reply # 4


Sunnyvale, US
          

Update...

I uploaded the wrong image. The one here is one I had processes somewhat differently but the names of the two files were so similar I picked the wrong one to upload. Oh well... Another senior moment. I like this one, but I think I over-processed it a bit and it looks a bit artificial to me. Live and learn. The file I intended to show isn't quite as artificial and harsh looking (to me) - just a bit softer.

I will try to be more careful in the future.

Thanks,
Richard

  

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lastdaylight Gold Member Laureate Ribbon awarded for winning in the Best of Nikonians 2013 images Photo Contest Nikonian since 09th Dec 2007Fri 26-Jul-13 01:51 AM
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#6. "RE: M42 Orion Nebula"
In response to Reply # 5


Dallas, US
          

So, come on, let's see the one you like better...

Mark Smith
Just like I previsualized it, more or less...

My Nikonians Gallery

My Website, www.lastdaylight.com

Visit my Nikonians gallery.

  

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RABaker Registered since 01st Oct 2003Wed 31-Jul-13 08:50 PM
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#7. "RE: M42 Orion Nebula"
In response to Reply # 6


Sunnyvale, US
          

Mark,

Sorry I didn't get back sooner, but I had some medical issues that consumed a lot of time over the past two weeks.

Thanks you for asking about the other image. I didn't upload it before because I didn't want to crowd the bandwidth with another image of the same object. But, since you asked, it is attached below. To me, it looks less processed and more "natural" (if that can be applied to an image of an object that we really can't see in this kind of detail without special image techniques). I guess it comes down to creating an image that satisfies our notion of what it may (or should?) look like.






Thanks for looking (again)
Richard

Attachment #1, (jpg file)

  

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lastdaylight Gold Member Laureate Ribbon awarded for winning in the Best of Nikonians 2013 images Photo Contest Nikonian since 09th Dec 2007Wed 31-Jul-13 09:06 PM
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#8. "RE: M42 Orion Nebula"
In response to Reply # 7


Dallas, US
          

Gotta say I like this one better, a bit less "over the top." This is very nice work, definitely "wall worthy." Sorry to hear about the medical issues - hope that's all better.

Best,

Mark Smith
Just like I previsualized it, more or less...

My Nikonians Gallery

My Website, www.lastdaylight.com

Visit my Nikonians gallery.

  

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nrothschild Silver Member Neil is an expert in several areas, including camera support Nikonian since 25th Jul 2004Thu 01-Aug-13 04:42 PM
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#9. "RE: M42 Orion Nebula"
In response to Reply # 7


US
          

I think the first image is more natural because it better illustrates the Trapezium, which is very obvious in a scope view but often lost (blown out) in very deep images.

As I understand it, the Trapezium is the heart and soul of M42 since it provides most of the illumination?

Just my take on what is "natural". Both are very fine renditions worthy of a wall hanging

_________________________________
Neil


my Nikonians gallery.

  

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RABaker Registered since 01st Oct 2003Fri 02-Aug-13 01:54 AM
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#10. "RE: M42 Orion Nebula"
In response to Reply # 9


Sunnyvale, US
          

Neil,

You are definitely right that the Trapezium shows better in the first image, although even there the multiple stars are blended into a single bright object. If I really understood how to use Pixinsight I could probably have had it show better in the second image too - but I'm a novice with the software and understand only a small fraction of what it can do or how to do it; and there is no manual, only a few tutorials spread around. Now that you mentioned the Trapezium, I may have to go back and try processing the image again to see if I can get the "best of both worlds."

Thanks for the kind comments,
Richard

  

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