NGC2170 repro

[gregbradley]

The original of this was a bit skewed in colour bias and colour noise handling.

I reprocessed this one after reading an excellent tutorial on advanced imaging processing which helped pick up some nice tips.

TEC180/FLI ML8300 LRGB 90 50 50 50, CCDstack, Photoshop CS2.

I am happier with this version.

http://upload.pbase.com/image/118656364

Greg.

[Lester]

Wow, that is outstanding. Thanks for the view Greg.

[DavidU]

Thats a hell of a re-pro (Sidonio) really nice.:thumbsup:

[strongmanmike]

Yes that's better :thumbsup:

Mike

[Tom Davis]

Much better!

Tom

[MrB]

It must feel good putting in all that effort and getting a result like this.
Nicely repro'd Greg. :thumbsup:

[spearo]

nice
i'm taking notes...
will come in handy someday soon
frank;)

[gregbradley]

Thaks Lester



I was happy with it different it turned out.



Its a quite different processing flow to what I normally use. I think I'll approach them all using this workflow. As you know sometimes you need to approach an image a few times to get the most out of it. Nothing wrong with that and I think its part of the processing.



Thanks Tom. I still have to master G2V colour balancing next.



It takes quite a bit of effort to capture the data so putting some extra time into research on processing is worth it.



We all happy to help here when you need it.

[Jeffkop]

Hmmm .. I dont think I saw the original, this ones a great picture though Greg. The tutorial you read wasn't written by Pro Hart was it ???

[marc4darkskies]

Much better Greg - well done! :thumbsup:

(Now added to my target list!! :) )

Cheers, Marcus

[multiweb]

That looks awesome. All that details certainly adds more punch to it. Well done. :thumbsup:

[gregbradley]

Hehe no by Bob Fera.



Thanks Neighbour. I move into your general area in a bit over a week.




Thanks for that. The free tutorial I read was very handy and very timely.

[MrB]

Incase anyone else is looking(as I did) for the free tutorial that Greg mentions, it is here: http://www.feraphotography.com/

[Hagar]

Really lovely Greg.

[h0ughy]

OHhh how cool is that repro!!!!!!!!!!!!! that is lovely, i have been looking at it for some time, it is very colourful and subtle

[gregbradley]

Yeah thats it. What was useful in there for me was the luminance and colour approach to combining using Photoshop (I have been combining in CCDstack) and also how to reduce star reflections. A bit of extra data about using CCDstack to its fullest. Also a bit of data about noise reduction in the green channel. I downloaded PixInsight trial but have yet to get the trial license. I'd like to use the colour balance using G2V stars. Have to do that one day. You can download a list of G2V stars for the Sky to make the job easier. Bob's writeup is very advanced image processing and seems to me to be cutting edge. I have been admiring his posted images for a while.



Thanks Hagar.



Thanks Houghy - I appreciate it.

[RB]

Wow, that's so cool Greg.
Check out the colours !

Very nice work mate.

:thumbsup:

[gregbradley]

Thanks RB. I knew the data was good although it is a slightly dim image. My first attempt I was hampered by a lot of colour noise. The digital stretching in CCDstack exaggerated the noise so I had to pull that back and save it as a scaled image to freeze the DDP settings.

[sjastro]

A definite improvement Greg.

Regards

Steven

[gregbradley]

Thanks Steven.

Greg.