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Old 10-11-2014, 04:16 PM
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nGC 2736, the Pencil Nebula

I've had a bad run with the weather, so I've taken to trolling through my archives to see if there were things that could benefit from a repro. I dragged out this one from January 2013. I wasn't really happy with the first attempt that I did at the time, so I never posted it anywhere. This one is better.
Telescope: William Optics ZS110 Refractor
Exposure: 200minutes spread over equal numbers (more or less) of R, G, B, L
Camera: QSI540wsg
Software: MaximDl (for acquisition), PixInsight
http://www.astrobin.com/135221/
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  #2  
Old 10-11-2014, 06:10 PM
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Excellent Geoff, pretty deep. I had a go in NB, not good, although its a neb, it does look better in LRGB.
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Old 10-11-2014, 06:30 PM
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Originally Posted by Bassnut View Post
Excellent Geoff, pretty deep. I had a go in NB, not good, although its a neb, it does look better in LRGB.
Thanks Fred. It does emit pretty strongly in OIII, so maybe throwing some OIII into the green channel would be a good idea. I'll be having another go at this with my 12.5" and new Proline 16803 when it's in a good position.
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Old 10-11-2014, 06:37 PM
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Originally Posted by ghsmith45 View Post
Thanks Fred. It does emit pretty strongly in OIII, so maybe throwing some OIII into the green channel would be a good idea. I'll be having another go at this with my 12.5" and new Proline 16803 when it's in a good position.
Whoa, a Proline 16803!. Quite an upgrade . Interesting to see what you do with that. 3nm NB filters too perchance?. Exy .
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Old 10-11-2014, 07:14 PM
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Whoa, a Proline 16803! 3nm NB filters too perchance?. Exy .
Not yet. Proline +7 position filter wheel+MOAG+7 filters (L, R, G, B, 12nm OIII, Ha, SIII)+connectors to PlaneWave didn't leave me with a lot of spare change. Maybe in the long term. Even the 12nm filters new are $500 each, although I managed to score these second hand at half price from Mike Sidonio.
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Old 10-11-2014, 07:19 PM
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Nice Geoff! Looking forward to seeing the result with your new camera.
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Old 10-11-2014, 07:33 PM
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Interesting to see what you do with that. 3nm NB filters too perchance?. Exy .
Just checked the price. Exy is certainly the word! 3nm 50mm square Astrodon filters are $US1250 each. May be some time before I get a set of these.
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Nice Geoff! Looking forward to seeing the result with your new camera.
Thanks Rex

Last edited by Geoff45; 10-11-2014 at 07:44 PM.
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Old 10-11-2014, 07:42 PM
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Nice job, Geoff. LRGB works quite well for this one which I wouldn't have expected.
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  #9  
Old 10-11-2014, 07:46 PM
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Nice job, Geoff. LRGB works quite well for this one which I wouldn't have expected.
Thanks Rick. How would you have tackled it?
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Old 10-11-2014, 07:46 PM
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Hi, Geoff, Lots and lots to see in this wider shot. Bok globules and dust lanes off to the right, and a meshwork of really faint stuff to the left of the pencil. I can see from your shot that I mis-framed my most recent effort. Great work. Best, Mike
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Old 10-11-2014, 09:14 PM
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Thanks Rick. How would you have tackled it?
Haven't really thought about it, Geoff, but most (all?) of the images I have seen have been narrowband. The received wisdom isn't always right, of course, as you've demonstrated.

Cheers,
Rick.
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Old 10-11-2014, 10:55 PM
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That's a little more interesting than I usually see that field presented, lots more going on and to see than usual, different colors, so well done on that score It suffers a bit in the warts department when viewed large though..but meah, still a very interesting image, enjoyed the view.

Mike
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Old 10-11-2014, 11:41 PM
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That's a beautiful image. Lovely colours. Very well exposed.
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Old 11-11-2014, 05:21 AM
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Thumbs up

It is really great shot
Franck
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  #15  
Old 11-11-2014, 08:33 AM
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Quote:
Originally Posted by Placidus View Post
Hi, Geoff, Lots and lots to see in this wider shot. Bok globules and dust lanes off to the right, and a meshwork of really faint stuff to the left of the pencil. I can see from your shot that I mis-framed my most recent effort. Great work. Best, Mike
Thanks Mike

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Originally Posted by strongmanmike View Post
That's a little more interesting than I usually see that field presented, lots more going on and to see than usual, different colors, so well done on that score It suffers a bit in the warts department when viewed large though..but meah, still a very interesting image, enjoyed the view.

Mike
Thanks Mike. Yep, the warts are there. In fact I was a bit hesitant to post this one because of the said warts. I think I can clean them up though if I go through a more careful repro.

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That's a beautiful image. Lovely colours. Very well exposed.
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It is really great shot
Franck
Thanks Kevin and Franck
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Old 12-11-2014, 09:21 AM
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Excellent shot Geoff. Love the colours on that one.
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  #17  
Old 12-11-2014, 06:28 PM
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Excellent shot Geoff. Love the colours on that one.
Thanks Marc. It's surprising what you can do with an image that you'd written off.
Geoff
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Old 12-11-2014, 10:37 PM
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Hi Geoff,
I really like your pic.
I believe I could make it even better with a few minor touch ups -
mainly a star mask to reduce star sizes & a slight colour boost & more contrast.
I'll post another version if you want?

cheers
Allan
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  #19  
Old 12-11-2014, 11:14 PM
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Great looking photo Geoff.

Very nice colours.

Ross.
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  #20  
Old 13-11-2014, 04:37 AM
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Originally Posted by alpal View Post
Hi Geoff,
I really like your pic.
I believe I could make it even better with a few minor touch ups -
mainly a star mask to reduce star sizes & a slight colour boost & more contrast.
I'll post another version if you want?

cheers
Allan
Thanks Allan. Go ahead and post. Nice to see what someone else makes of it. I actually didn't go all out with this one because my first processing attempt two years ago was a real bummer, so when I did a quick repro and got a much better result I stopped there. Now that I've got so many positive comments I'll have a more careful go at it.
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