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Old 17-10-2010, 02:50 PM
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Running Man Nebula CDK17

After the heavy weather of the last few days last night was gorgeous.

Totally clear all night and reasonable seeing.

I caught up on a few images.

Orion now is rising and is quite high in the sky in the early morning.

Planewave CDK17, Paramount ME, FLI Proline 16803, Astrodon Gen 11 LRGB filters.

LRGB 30 30 20 20.

http://www.pbase.com/gregbradley/image/129483539/large

Greg.
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Old 17-10-2010, 02:59 PM
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Wow Greg, you've really got that system working well, a very nice crisp image, that proline really sucks in the data, well done.


Darren
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Old 17-10-2010, 03:15 PM
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h0ughy (David)
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looks great and the colours are very nice - but there seems to be a horizontal line in the middle?
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Old 17-10-2010, 04:30 PM
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Quote:
Originally Posted by desler View Post
Wow Greg, you've really got that system working well, a very nice crisp image, that proline really sucks in the data, well done.


Darren
Thanks Darren. Its nearly there. The camera is working very well

Greg.


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Originally Posted by h0ughy View Post
looks great and the colours are very nice - but there seems to be a horizontal line in the middle?
I assumed it was the object but I looked again and there are several that radiate towards something offscreeen. I think it is glare from one of the bright Orion stars out of the image. I am having trouble with glares from bright stars out of the image. I am looking at various solutions to this. One is to check the adapter for any bright parts and paint it a flatter black. Another is possibly flocking the interior of the baffle tube. Another is installing a knife edge baffle to the baffle tube ( it may already have some?).

Greg.
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Old 17-10-2010, 04:39 PM
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Superb shot Greg. Those colours and stars are to die for! Just found it a little soft when I first opened it. Just personal preference. I'm probably used to see this area sharpened and saturated to the max. Top work.

Last edited by multiweb; 17-10-2010 at 04:51 PM.
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Old 17-10-2010, 04:42 PM
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I like !!!
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Old 17-10-2010, 05:22 PM
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That's beautiful Greg, lovely simple soft image and I agree with Marc, the stars are perfect. Yeh could do with a little sharpening maybe or less smoothing, as the case may be, but it is a fine image as is. The images from the 17" CDK are really showing great imposing image scale, other large RC's etc just don't seem to demonstrate this effect..? Perhaps it is the way they are processed or even posted..? although I see a similar effect with Mike Berthon Jones images done with his 12.5" CDK..?

Mike
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Old 17-10-2010, 05:24 PM
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Quote:
Originally Posted by multiweb View Post
Superb shot Greg. Those colours and stars are to die for! Just found it a little soft when I first opened it. Just personal preference. I'm probably used to see this area sharpened and saturated to the max. Top work.
Thanks Marc,

I don't think I can get it any sharper with inducing too much noise and the short total exposure will show. More exposure would take more sharpening.
Like a few other images I am doing I will add more exposure time as weather is clear. I have extra data now for the Corona Australis, NGC300 images I posted.

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I like !!!
Thanks Trevor. Its an interesting object and every year I intend to image it and often don't get around to it for some reason.
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Old 17-10-2010, 05:24 PM
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Its an outstanding image Greg. Have to be be happy with that setup too!!
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Old 17-10-2010, 05:30 PM
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Quote:
Originally Posted by strongmanmike View Post
That's beautiful Greg, lovely simple soft image and I agree with Marc, the stars are perfect. Yeh could do with a little sharpening maybe or less smoothing, as the case may be, but it is a fine image as is. The images from the 17" CDK are really showing great imposing image scale, other large RC's etc just don't seem to demonstrate this effect..? Perhaps it is the way they are processed or even posted..? although I see a similar effect with Mike Berthon Jones images done with his 12.5" CDK..?

Mike
Thanks Mike.

The lack of total exposure time limits the amount of sharpening I can do to it. I will add more exposure time to it like I have for some other images.
Clear weather has been so rare lately and it is still quite low in the sky.

I like the image scale but I am having trouble with bright star flares
just out of the image. I have to track down where they are coming from over the next week or so. But overall I like the CDK17. I think I'll be able to handle these flares and they are only a problem occassionally.

I need to make sure I turn the fans on early to let it equalise as you can't get a sharp focus with more than about .5C difference between the primary and ambient temperature. It takes maybe 2 hours to get there. Perhaps a little AC unit may help.

Greg.
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Old 17-10-2010, 05:36 PM
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Top image Greg, framed beautifully. Thanks for the view. All the best.
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Old 17-10-2010, 06:09 PM
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That's a great image Greg. I've never seen that much detail in the dust clouds in an image of the running man before. Is that the full fov or a crop with the new gear?

Peter
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Old 17-10-2010, 06:12 PM
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So beautiful, Greg.

Another celestial landscape.

H
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Old 17-10-2010, 07:01 PM
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A stunner. Well done.
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Old 17-10-2010, 08:13 PM
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Quote:
Originally Posted by Lester View Post
Top image Greg, framed beautifully. Thanks for the view. All the best.
Thanks Lester.

Quote:
Originally Posted by peter_4059 View Post
That's a great image Greg. I've never seen that much detail in the dust clouds in an image of the running man before. Is that the full fov or a crop with the new gear?

Peter
That is almost entirely full frame with only a very small crop to get rid of stacking edges. So probably about 95%.

Quote:
Originally Posted by Octane View Post
So beautiful, Greg.

Another celestial landscape.

H
Thanks Humi. It is a great part of the sky.

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A stunner. Well done.
Thanks a lot David.
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  #16  
Old 17-10-2010, 10:12 PM
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Nice Greg. Smooth detail and nice contrast. I wonder if some Ha will have an impact on this image. Not much red in this region so I suppose not but those dust lanes might contain a lot of Ha.
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  #17  
Old 18-10-2010, 06:22 AM
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Great image Greg, and such short exposure time - I guess that's what 17" of aperture at f6.8 brings you. I agree that it could do with a tad more sharpening.

cheers
Martin
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Old 18-10-2010, 06:27 AM
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Excellent!!

Tom
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  #19  
Old 18-10-2010, 07:07 AM
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Absolutely beautiful!
However....hehehehhe
I STILL CANT SEE A RUNNING MAN!http://www.iceinspace.com.au/forum/....eyepopping.gif
all I can see is ( apart from the beautiful pic), is a Goanna.....
I ps'd this...
Hope you dont mind.................
Bartman
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  #20  
Old 18-10-2010, 09:10 AM
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Very good Bart, nice to see you are monitoring things so well
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