Quote:
Originally Posted by strongmanmike
I have to say that looks mighty deep for just 2hours of Lum (even without the RC data added)..?
How are you bringing out the apparent faint very outer arms/halo? are you lasooing> feathering > levels/curves/brighteing? Are you doing this in layers on layers?
You must have blended to add the various layers and RC data, how did you handle the transitions as you went out from the galaxy and around the edges?
Mike
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It varies a bit depending on the image but basically curves and blending the image with a bit of extra curves in with the original so it doesn't washout the colours using a mask. I only blended in the inner areas of the RCOS as it didn't actually show hardly any faint outer arms. Only the TEC does that.
Roland Christen did an interesting writeup about that overnight. Mirrored systems have a lot more scatter than APOs hence APOs can go deeper and be stretched harder to reveal faint detail more easily than mirrored systems. I have found this to be true and your Centaurus A image also proves that point.
The point here is you can't bring out those faint details with photoshop trickery only enhance what your scope captured in the first place. Its a strength of APOs that should be taken advantage of and pushed.
Also I started using sum combine in the combination method of combining the subs as it gives finer control and brought out the fainter stuff just that bit better thna median. The price is more artifacts like cosmic rays etc you have to clean up with the healing tool later but its not that bad.
Quote:
Originally Posted by bloodhound31
Magnificent Greg. You have set the bar for many of us mate.
Thanks Baz.
Baz.
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