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 Post subject: The "Double Cluster"
PostPosted: Wed Sep 19, 2012 3:55 pm 
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Hi folks,

There was a brief hiatus last night after I'd finished capturing some subs of the Soul Nebula so while I waited for the Pleiades to come into view I grabbed 5 x 200 second subs in each of red, green and blue of the Double Cluster. Here's the web friendly size but a lot of detail gets lost so I urge those interested in doing so to click on the image to view the full-size version which nicely shows off the capabilities of my TEC 140 'scope and the DDM60 Pro mount which was operating, as always, unguided. 8)

    Image

      The Double Cluster (NGC 884 and NGC 869)

The image was cropped from a 4096 x 4096 pixel original which, while it showed a lot more stars around the cluster, didn't really add much to the party. NGC 884 is on the left and NGC 869 is on the right. You can read more about the Double Cluster here on Wikipedia.

I found it quite difficult to get a good look for this image, especially in its much reduced 1024 pixel wide version above, but in the end settled for a pretty severe colour boost together with the addition of some spikes around the brighter stars. Part of my reason for choosing a refractor was to avoid star spikes (diffraction patterns) around stars so it seems crazy in some ways to add them during post but in this case I think it lends a little more interest.

Bob.

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Olympus OM-D E-M1 + M.Zuiko Digital ED 12-40mm f/2.8, Lumix 7-14mm f/4, Leica DG Summilux 15mm f/1.7 ASPH, M.Zuiko Digital 45mm 1:1.8, M.Zuiko Digital ED 75mm 1:1.8.
Leica D Vario-Elmar 14mm-150mm f/3.5 - f/5.6 ASPH.
OM-D E-M5, H-PS14042E, Gitzo GT1541T, Arca-Swiss Z1 DP ball-head.
Astrophotography: TEC 140 'scope, FLI ML16803 camera, ASA DDM60 Pro mount.


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 Post subject: Re: The "Double Cluster"
PostPosted: Sun Dec 23, 2012 9:31 am 
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Joined: Sat Sep 30, 2006 4:30 pm
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Location: UK
Hi folks,

Having had the wool pulled from over my eyes so far as retaining colour in brighter parts of an image while boosting the dimmer parts I'm looking back at some of my earlier data. Here's the difference:

    Image

      The Double Cluster (NGC 884 and NGC 869)

Bob.

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Olympus OM-D E-M1 + M.Zuiko Digital ED 12-40mm f/2.8, Lumix 7-14mm f/4, Leica DG Summilux 15mm f/1.7 ASPH, M.Zuiko Digital 45mm 1:1.8, M.Zuiko Digital ED 75mm 1:1.8.
Leica D Vario-Elmar 14mm-150mm f/3.5 - f/5.6 ASPH.
OM-D E-M5, H-PS14042E, Gitzo GT1541T, Arca-Swiss Z1 DP ball-head.
Astrophotography: TEC 140 'scope, FLI ML16803 camera, ASA DDM60 Pro mount.


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 Post subject: Re: The "Double Cluster"
PostPosted: Sun Dec 23, 2012 1:32 pm 
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Joined: Wed May 09, 2012 10:34 pm
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Location: Mexico City, Mexico
Wow, it looks a lot more defined, good job Bob :)

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Visit me and leave me a comment in My Flickr :)


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 Post subject: Re: The "Double Cluster"
PostPosted: Sun Dec 23, 2012 5:53 pm 
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Location: United Kingdom
Beautiful!

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