HaLRGB for Dummies

[pvelez]

The imaging window opened for the first time this year for me last weekend. With so much moon about, I dashed off to Bintel and picked up a Ha filter.

I am now the proud owner of an hour of Ha data for the Tarantula. I've managed to collect some more RGB and L tonight before Mr Moon showed his face again.

So - now what do I do with it? I have been combining LRGB with a combination of Maxim and Photoshop. I also had a play with the technique of combining Ha and L into a single L frame using the Lighten blend mode on PS. The tutorial at

http://www.mistisoftware.com/astronomy/Process_m8.htm

is very helpful. However, I can't get the colour balance right. Perhaps I don't have enough RGB data - I will see tomorrow when I have a chance to play with it.

In case that is not it, can anyone point me to an online tutorial giving some alternatives for combining Ha with LRGB?

Thanks team

Pete

[Rigel003]

You could try this from Russel Croman's website.

http://www.rc-astro.com/resources/index.html

[Tandum]

Here's another one -> http://www.robgendlerastropics.com/HARGB.html

Basically you add some Ha to both Red and Lum.

[pvelez]

You know Graeme, I scannedthat site but couldn't locate the discussion of Ha combination - it was lurking in the text as the heading was tacked on to the discussion of M42. Thanks for pointing it out - I found it this time. I'll give it a go this evening

Pete

[pvelez]

Thanks Robin

I have wrestled with this method - for some reason I still get salmon. I guess its pilot error. I'll have another go tonight

Pete