[alocky (Andrew lockwood)]

Originally Posted by alpal

Hi Andrew,
That's a top picture.
It's very difficult to process this target.
I would have used NASA FITS Liberator to do the stretching
but then again I don't have PI.
There are parts right at the center which should be brighter than they are.
The brightness is too uniform across the white & bright areas of the nebula.
I think you've lost some of the brightness information there.
As for the colours you can do anything with this nebula.
It definitely has unusual green colours in an RGB image
but yours is narrowband.
Thanks for sharing.

cheers
Allan

Thanks Allan, I guess it's hard to know where to stop! The OIII signal is so strong in this object that OSC and modified DSLRs still have a hard time rendering it in red.

Originally Posted by Andy01

Hey I kinda like it too - except it looks more bicolour than HST - maybe gone a tad too far with the S2?
Kudos for breaking the "rules" and ther's some great detail showing.

I'm hearing it needs more green...

Originally Posted by strongmanmike

Yeah not baaad Andrew...but perhaps it just needs some more green....



He he...nice work

Mike

Yep, definitely needs more green. OK I've put a little bit back in...

Originally Posted by RickS

I like both, Andrew The Tarantula is always an impressive object and even better with a bit of focal length.

Something worth trying, if you haven't already, is to use LinearFit to match the Oiii and Sii to the Ha before combining. I often use that as the starting point for the colour.

Cheers,
Rick.

Thanks Rick, I had a go at the linear rescale prior to stretching, combining, but it didn't seem to make that much difference as I'd been eyeballing the curves and trying to equalise them anyway. Still, I didn't know that tool even existed and it is easy to use! Since I'd gone back to the AIP script I figured I'd give it another go...