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PostPosted: Sun Sep 01, 2013 3:59 pm 
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Hi folks,

Here's the finished article:

    Image

      NGC7822

If you want to see a 2048x2048 pixel version then please click here.

The palette choice, ordered by atomic weight with hydrogen = red, oxygen = orange, nitrogen = green with a splash of blue and sulphur = blue, is a little unusual but it seems to work for this object. White balance was set where hydrogen, nitrogen and sulphur reached their maximal values but please bear in mind that not only is this a "false colour" image but hydrogen is by far and away the strongest and would dominate the image if I let it. I think the palette has virtue, both aesthetically and as an aid to seeing what is going on. It also means that there is a chromostereopsis effect with the whiter and bluer stars and, to some extent, the whiter nebulosity appearing to float slightly in front of the redder parts of the image. Such a 3D effect is pure fiction of course, but fun if you like to let your imagination lose. If you don't see this effect then you may need to relax your eyes slightly as you view the image. If you still don't see it then maybe you just have really good eyesight. :) Best seen on the larger image and, if possible, with a dark surround.

I hope you like it.

Bob.

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PostPosted: Sun Sep 22, 2013 6:49 pm 
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Hi folks,

This image has been an interesting journey. Our forum here isn't the most natural place to post such work but it has also had a fairly quiet response on the more specialised forums. Quite disheartening, really, considering how much work went into producing it but maybe I made a rod for my own back by daring to be different. :evil:

Oh well, I've had a bit of a break from astrophotography over the last month or so as I've been building a new workstation but with that essentially complete I'll try and get back into the swing of things and have a crack at the Flame Nebula, also in quad-band (Ha, OIII, NII and SII). Here's hoping for clear skies as I really need a week of them just to gather the data. :roll:

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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PostPosted: Sun Sep 22, 2013 10:41 pm 
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You should have some clear skies soon, as I have zero motivation to go imaging so no doubt it'll be perfect. Haven't even got round to collimating a scope which has now taken so long I've misplaced all the bits I got to do it with!

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PostPosted: Mon Sep 23, 2013 2:51 am 
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Although not my thing, I find this type of image very interesting and can appreciate the work you put into it. Not knowing anything to make a comment, I think many of the forum look and make no comment as I do. Good work.


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PostPosted: Mon Sep 23, 2013 8:26 am 
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Hi popo,

I'm sorry to hear that. But these things go in cycles, as I know too well, and no doubt with a spell of clear moonless nights, of which we are owed many after last winter, curiosity will hopefully win out and you'll get your 'scope set up and imaging again.

Bob.

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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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PostPosted: Mon Sep 23, 2013 8:59 am 
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Same as 4xxxx. I often look at these amazing images in this section (& show them/point them out to others) but wouldn't have a clue what to say :lol: I can only guess at the time & work you guys commit to these.

Please don't be disheartened because I & others don't comment, I certainly enjoy looking at them. 8)

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PostPosted: Mon Sep 23, 2013 11:03 am 
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I think it's a stunning image. The way it has been created sounds rather complicated, and I don't have a clue as to how it's done, but I greatly appreciate the end result. It's beautiful, a job well done!

- Bjorn

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PostPosted: Mon Sep 23, 2013 2:57 pm 
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Aw, thanks folks. I wasn't looking for sympathy or those very nice reactions but both are much appreciated. 8)

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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PostPosted: Tue Sep 24, 2013 3:50 pm 
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@Bob, there was a partial clear sky last night and I caught a glimpse of Cygnus... and I thought of re-doing the Veil again. My depression didn't last long did it? Instead, it means we'll either not get any clear nights until it is out of range, or I'll be working funny hours/away from home when it is clear. On that note, see if you have some luck the latter part of this week!

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3rd party: Zeiss 2/50 makro, Samyang 8mm fisheye, Sigma 150 macro, 120-300 f/2.8 OS, Celestron 1325/13
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PostPosted: Wed Oct 02, 2013 7:03 am 
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Stunning image. love those star shots, got now idea on how you do it , but they look awesome

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PostPosted: Sun Oct 06, 2013 10:38 am 
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I wouldn't know where to start to get such a shot as that! but OMG it blows me away, stunning

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PostPosted: Mon Oct 07, 2013 6:31 pm 
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Hi folks,

Thanks for those lovely comments. If I, and others who post "astro-photos" can enthuse others to get into astronomy then, for me, that's a win. 8)

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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PostPosted: Wed Nov 27, 2013 2:05 pm 
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Hi folks,

Christmas has come early this year. Not only has the image above won this month's "On Assignment" (thank you) but it also made the front cover of the December issue of the Journal of the British Astronomical Association, as I discovered a little while ago when I opened my mail. 8)

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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PostPosted: Wed Nov 27, 2013 5:49 pm 
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Congratulations Bob! Some well-deserved attention from people who know more about this sort of photography other than that it is incredibly beautiful.

- Bjorn

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PostPosted: Wed Nov 27, 2013 9:26 pm 
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Congratulations. Well deserved!

I bet you feel well chuffed now and much less disheartened. 8)

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Nikon D800E & D700 bodies + Nikon 200-400mm F4 VR1, 50mm F1.4G, 16-35mm f/4G VR, 105 F2.8 VR macro, 70-300mm lenses. A couple of filters, Giotto tripod & ballhead. Lowepro Slingshot 302 AW
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