NGC 3372 HST Palette - 200mm widefield

[multiweb]

Same rig on Eta Carina area. Less exposures for this one as it's pretty bright so Sii (R - 1.6h) Ha (G - 1.6h) Oiii (B - 3h).

There's a HD version here (http://www.astropic.net/astro/ngc3372_SiiHaOiii_ff.jpg)[2.6MB] and a 1:1 version here (http://www.astropic.net/astro/ngc3372_SiiHaOiii_fff.jpg)[6MB]

Thanks for looking. :thumbsup:

[h0ughy]

wow takes a bit of getting used to as they are normally all red/maroon but it is quite pleasing to look at

[strongmanmike]

Enjoying the colour from you Marc :thumbsup:

Mike

[troypiggo]

Yes. Yes. Lovely colour. Stars handled well again.

[multiweb]

Hi David what you're seeing is a lack of reds in the dark areas which is indicative of Sii starvation. I deliberately chose to let some cyan vs. blue in this one because there is a clear distinction between the turquoise and deep dark blue sections of the nebula. Being more aggressive on the greens would level this nice contrast. If you have quality Sii data (which I'm not getting yet) then the mustard browns will naturally turn to deeper brown and reds and the cyan to deeper blues.


Thanks again Mike. :thumbsup:


Thanks Troy. Glad you think so. :thumbsup:

I think I'm getting close to the right flow for the stars now, and it seems reproducible. If you check the PS stacks I've emailed you just after the color noise reduction I re-blend it as lighten mode at 50%. That puts colors back into the stars and gets rid of any ringing induced by other processes. 1:1:1 gives you the right color stars but the edge of the stellar profiles are obviously green.

At the end of the day I think having just enough data to overcome noise in each channel is key and you have to stretch everything while in 32/16bit FIT format prior to go down to a scaled TIFF in PS or you'll comb the histogram by lack of samples trying to stetch there.

[RobF]

Beautiful work Marc. Would be very interested to hear more about your workflow eventually. Stars don't overwhelm at all.

[multiweb]

Thanks Rob. Just PM me your email and I'll send you some files in the meantime. You use PS?

[RickS]

I really like the colours in that too, Marc.

Cheers,
Rick.

[allan gould]

Now that scheme I really like. Makes it all visually exciting and refreshing for some of these well imaged regions.

[Ross G]

Hi Marc,

Another great photo.

Amazing detail.

Who needs a dark site!


Ross.

[multiweb]

Thanks a lot Rick. Glad you liked it. :thumbsup:


Thanks Allan. :thumbsup: Eta's good value at any FL. Keep hammering. ;)


Thanks a lot mate! :thumbsup:



Me Me Me !!! :hi:

[naskies]

Nice one! Interesting look to a familiar target.

[multiweb]

Thanks Dave. :thumbsup: Interesting's always good. :)