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troypiggo
25-11-2010, 04:01 PM
Sorry for another repro of my NGC6334 Cat's Paw. It's more about me refining my processing technique than anything else. I've also challenged myself with a few goals. Rounding out stars that were elongated because this was taken with my ED80 before I got a flattener. Getting colour into the stars, as I've been finding that hard to control with the 40D - usually they end up white. I'm happy with both results.

Along the way I've come up with some Photoshop actions that helped. I've made a quick post here (http://www.iceinspace.com.au/forum/showpost.php?p=659346&postcount=26) about them, but will create a new thread I think so I don't hijack Marc's thread.

Big part of the processing was separating the stars from the background, so I've posted a starless and stars version. Previous repro attempt and original image to compare were posted here recently (http://www.iceinspace.com.au/forum/showthread.php?t=68435) if you're interested.

PS - go the ED80 and go the 40D! :D

Octane
25-11-2010, 04:38 PM
Maaaaaaaaaaate,

That starless version is even better than your previous release.

That's just surreally beautiful. I love it so much. Almost as much as I love the thread title.

Print. Frame. Hang. Admire.

H

gregbradley
25-11-2010, 04:59 PM
Starless is cool although there are quite a few artifacts left over. The Clone tool may be your best friend there.

Greg.

Octane
25-11-2010, 06:07 PM
The artifacts help the image. They look like brushstrokes.

The "thing" looks like a fish or a sea creature in murky waters.

H

jase
25-11-2010, 06:07 PM
Pretty cool starless version Troy. Thought I think it needs stars. Wide fields normally do. Unless you're using an uber long focal length and the frame is full of nebulosity, you can normally get away with no stars (Reference Fred's lagoon). I enjoyed the neb colour depth. Well done.

troypiggo
25-11-2010, 06:08 PM
Thanks mate. :) Know anyone with a big a$$ printer capable of such a thing? Hehe.



Thanks Greg. You don't notice the artifacts as much when the stars are there, hey. I think I've gone cross-eyed playing with all different processing methods on this shot to get to where I'm happy. Might play a bit more to see what I can do with them, but not sure it's worth taking it much further. I'll see what I can do though. :)

troypiggo
25-11-2010, 06:09 PM
Thanks so much, Jase. It's great getting all these tips/critiques from the PP gurus :)

that_guy
26-11-2010, 07:52 PM
:eek: that with the ed80!?!?!?!?!?!?!?!

troypiggo
26-11-2010, 07:57 PM
Yeah mate, this shot was taken with that scope you have right now. Literally. ;)

that_guy
26-11-2010, 08:06 PM
and the 30D is not too far away from the 40D... :O haha altho ill never be able to get that :lol:

Alchemy
26-11-2010, 08:07 PM
I like the regular version, nice work with the fainter elements, you've really pulled out the detail,:thumbsup::thumbsup:

The starless version....... Don't like the artifacts particularly, I thought you could get filters that just offset the Ha and you subtract one from the other.... Or something like it....

As an exercise, can you select the stars copy them onto a black version of the image, move them 8 or so pixels to one side, use that to create a mask and select that space on the original, then duplicate, move those bits back the 8 pixels, blend back into hhe original image and blur slightly........I'm sure it could be done and not leave any artifacts.:question:

troypiggo
26-11-2010, 08:52 PM
Thanks Clive. I'll have a play this weekend. :)

Hagar
26-11-2010, 09:04 PM
Starless version looks good Troy but I think the stars add that extra bit of punch to the image.
Well done.

Octane
26-11-2010, 10:14 PM
Leave the starless image the way it is.

This is art. It's not science.

The artifacts resemble brush strokes, and, to me, that is a major win.

This image is epic.

H

troypiggo
26-11-2010, 11:08 PM
TBH I've spent enough time on these and I won't be annoying you guys with yet another repro post. That being said, I do want to have a bit of a play at what Clive suggested just to see what's possible.

jjjnettie
26-11-2010, 11:41 PM
I love starless.
Like H said, it's art.

multiweb
27-11-2010, 08:40 AM
Terrific work Troy. Go the ED80. :thumbsup:

strongmanmike
28-11-2010, 02:00 AM
Hey Troy don't worry about people getting annoyed at repros, there is no rule that says thou shalt not repro..?..is there :question: :lol:

Sometimes it is good to be able to just share your on going experiments and processing variations so it isn't just between you and your computer all the time, not every post has to be a perfect grand contest entry, there is a lot of interesting stuff and techniques around.. so share'em :thumbsup:

As far as this shot goes...it looks quite dramatic and I like it with stars :)

Mike