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Old 04-04-2010, 12:38 AM
Enrique
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Enrique is offline
 
Join Date: Dec 2005
Location: Singleton
Posts: 138
NGC4945 after IceInSpace comments-advice

List of comments from IceInSpace

Green cast:

Fixed by adjusting the green curve and saturation in PS.

Stars lost their colour and look unnatural:

This was a problem with the sharpening that bleached the stars. I am now using the high pass filter + desaturation in PS.

Background too black, unnatural:

Fixed by changing the black point plus “lighter” curve in PS.

Jpeg artefacts:

No idea what to do. Please advice.

I also tried to improve the galaxy so it “jumps” out of the picture. I changed the clipping parameters in DSS (DeepSkyStacker) to force it to reject more data and select only the pictures with a FWHM less than 4.9. Result: smaller stars and crispier details better for sharpening. 10 hours of data gives lots of room for manoeuvring.

Please send more comments and thanks for looking,

Enrique
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