Ngc6188 rgb = ohh

[codemonkey]

I really need to build a defect map for my camera; you can really see it in the OIII data, it's pretty bad. I also need to do much longer exposures for OIII as 20mins is landing me too close to the read noise.

Anyway, this is a quick hack at processing it. RGB = OIII, Ha, Ha. Total integration time of 5hrs, 40mins.

Astronomik 6nm OIII
Baader 7nm Ha

[hobbit]

not too shabby at all.

[RickS]

Very sinister, Lee. I like it.

[Camelopardalis]

Oooh yes very moody, nice one Lee :thumbsup:

[aarong]

Great! I'm enjoying watching this project come along. I'm hoping to try and do some narrowband imaging one day, so interested in what sub-exposure times you are using.

Aaron

[multiweb]

Nice one Lee. :thumbsup: IMHO the best palette to use in a bi-color with Ha and Oiii is the following blend:

Red: Ha
Green: Oiii or 50% Oiii with 50% Ha
Blue: Oiii

You'll get something similar to this (https://onedrive.live.com/?id=6930D3AD12D5044C%21986&cid=6930D3AD12D5044C&group=0&parId=6930D3AD12D5044C%211055&o=OneUp)or this (https://onedrive.live.com/?id=6930D3AD12D5044C%211130&cid=6930D3AD12D5044C&group=0&parId=6930D3AD12D5044C%211059&o=OneUp).

[ZeroID]

BATMAN !!! Nahnahnahnahnah ....... Love the colours. As Ricks says, very sinister looking.

[Robert9]

Nice and sharp and I like the framing. But IMHO the blue is just a bit too strong.
Robert

[rustigsmed]

yeah nice one Lee, sharp and smooth.

here is a result I got experimenting with a Ha Oiii bicolour.
R Ha, G OiiiHa, B Oiii and by using selective colour to diversify the colours.

your data is way better so I imagine you could pump out quite a few variations https://www.flickr.com/photos/80336656@N07/18295560081/in/dateposted-public/lightbox/

cheers
russ

[codemonkey]

Thanks mate :-)



Thanks Rick!



Cheers Dunk!



Thanks Aaron :-)

All of the subs used in that were 20mins. I'm live in fairly dark skies, but the moon was fully up for I think all of the Ha and some of the OIII. My OIII subs were too short though, made it difficult to separate the signal from the noise when processing... I'll probably double that to 40mins and try and get some more tonight.



Thanks Marc! Pretty sure I tried a similar mix initially but didn't much like it as, if I remember correctly, it came out very yellow with this data. I'll keep playing with it though and give it another shot.



lol. Thanks mate.



Cheers Robert! Yeah I was wondering whether I pushed the saturation a bit much. It was pretty subdued originally and I liked it, but I tend to understate colours too much so I made it more saturated than I initially thought looked right.



Cheers Russ, that looks really nice... love your colours!

[rustigsmed]

thanks Lee

take a look at this http://bf-astro.com/hubblep.htm
my original version was yellow too

https://www.flickr.com/photos/80336656@N07/17084894579/in/dateposted-public/

vs

https://www.flickr.com/photos/80336656@N07/18295560081/in/dateposted-public/

[codemonkey]

Nice, thanks mate! I'll be trying for more OIII tonight and then I'll start a few colour variations and see how I go.

[pluto]

That's very nice :)
I'm always impressed with some of the looks one can get with Ha and OIII.

[codemonkey]

Thanks Hugh :-)

I got some more OIII last night which clean that up well. I still need to build a defect map, but I cleaned it up a little bit with auto detected cosmetic correction.

I've been unable to figure out how to get the colour diversity Russ got so mine are still looking very monochrome.

Here's another variation which I'm liking though... HOO instead of OHH.

[codemonkey]

Ok, found another tutorial which spelled it out for me in terms of PI. Finally got something with a bit of colour now: http://www.astrobin.com/192442/