[jase (Jason)]

Originally Posted by Garyh

All that detail!
Superb work like Always Jase!
mmmm 24" RC very nice gear at lightbuckets!
Must give it a go now that we have broadband!
Have a great chrissey break!
cheers Gary

Thanks Gary! For sure, you should have a go. The possibilities are endless...collect some high res lum data off their scopes and combine it with some RGB of your own. Hope to catch up with you in the new year and looking forward to seeing some more of your work. Cheers!

Originally Posted by sjastro

The angular dimensions of the Carina Dwarf is about 20 X 15 arcminutes.
Size is approximate as the dwarf is incredibly faint.

Might be worthwhile even at 530mm.

Regards

Steven

Hmmmm, could be onto something there Steven. Maybe able to make a reasonable scene out of it. Noted and on the list... Thanks again.

Originally Posted by Paul Haese

Superb image and great resolution. Mind you I would expect nothing less than this from a 24" scope. Thanks for posting Jase.

Cheers Paul. 24" scope can deliver impressive results....but...Having top quality gear at your disposal doesn't make you a pro... you still need to put in the hours. I seriously wrestled with this data. The displayed image was the fifth iteration which I finally settled with. Pleased you liked the end result. If the Helix crossed the meridian higher than 45 degrees from Rodeo, New Mexico, I may have a chance to rival other professional landbased scopes.

Originally Posted by Jeffkop

A very fitting reward for your effort Jase, as good as any image of this nebula for sure. So much fine detail around the edge of the "iris" too.

I dont recall a mention of the camera involved in this image???

Thanks for the eye catcher

Thanks Jeff. Oversampled data craves deconvolution...so I gave it heaps! Surrounding area only PC40, but the towards the core I blended in PC80 and 120 data. This provided most of the detail along with subtle use of PS HPF - too easy to over do it.
The camera used for the Helix image was the Apogee Alta U42. Its a back illuminated camera with a >90% QE, 4.2mp. Very well matched for the 4.8mtr FL of the 24" RC. Not cheap however - US$38.5k. I guess thats where rental scopes come into their own... Thanks for checking out the image and making comment.

Originally Posted by strongmanmike

Nice combine job Jase, great detail and colours too ...but then ya'd expect that from a 1/4mill proffessional telescope with a master in control of the processing

I too got some amazing OIII structure data for my deep Helix earlier in the year

http://www.pbase.com/strongmanmike20...67607/original

but try as I might I couldn't fully combine it with my Ha and SII without camoflaging it ...any secret there?

Great job on the dwarf, also some excellent res there for an FSQ too.

Mike

Thanks Mike. You've picked up some stunning structure in your rendition. Kudos! In a work in progress image, I've got a similar palette which is a Ha:OIII:OIII blend to really express the OIII ejecta. Its not ready yet, but looks impressive.

Sounds like you struggled similar to me with the blend. I didn't have any problems with the Ha, SII. With the Ha as the base layer, and SII on top. I made the SII layer as lighten mode and stretched the data to a midway point, then dropped the opacity of the Ha layer to taste so the SII highlights were more pronounced. You can stretch the SII further if desired. I then flattened the layer and used this as the reworked SII. Sure, I've probably upset the narrowband purist, but in the quest for aesthetics you'll go to great lengths. You'll find the reworked SII with be a better match for the Ha data.

Where I had to make a compromise was with the OIII data. The stronger I made the ejecta visually, it would simply mute much of the Ha/SII structure. Drove me nuts. I ended up masking it. This was achieved by coping the OIII layer, creating a hide all mask, then pasting the OIII layer into the mask itself to match only where the OIII structure was present. I then simply dropped the opacity of the layer to taste. I'm sure there is a better way of doing it...

Anyway, I hope this helps with your rendition. Thanks for your comments.

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Thanks All. Appreciated.