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Old 19-07-2015, 10:56 AM
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gregbradley
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Join Date: Feb 2006
Location: Sydney
Posts: 18,185
Hi Rex.

Nice NGC6188. I like it.

A few pointers in my opinion. Possibly a tad too red. I know it has a lot of Ha but as a general rule of thumb of my own I like to try to get a range of colours in an image and not too much of any one colour (of course objects have a colour but when you add Ha or have a Ha boosted DSLR which tend to red bias it becomes a bit harder).

I have no attention on the stars when I view the image apart from the occasional red bias. The dust ridge near the bright area could be selectively sharpened as it really is the subject of the image and thus it could be made to impact more. Selective sharpening means a sharpened layer and a mask and then reveal only those areas of interest through the mask. I usually use Photoshop but I am sure it can be done in PI.

The mosaic seaming is perfect, I cant tell where one panel ends and the other starts and that's very hard to achieve in mosaics.

Greg.
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