Thanks all for the kind words. I think having a history in photography and image processing has really helped dive into this hobby getting a lot out of the data.
Quote:
Originally Posted by h0ughy
great shot Chris - love it. try PI's HDR multiscale for core details?
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Actually not, HDR Multiscale Transform for me has been an epic fail every time. I actually discovered a new tool this weekend that I am extremely happy with. Local Histogram Equalisation. I applied it to only the bright core in this image but also in my Corona Australis close up I used it to pull some wonderful detail out of the backlit dust around NGC6726/7.
Quote:
Originally Posted by naskies
Looks nice, Chris 
Interestingly, I've noticed that a couple of my SLR lenses have noticeably worse coma in one corner (not noticeable at all for terrestrial shots). I wonder if it's related to mount misalignment or a lens collimation issue? |
My lenses appear to have the sharpest point centred quite well. However I had a Sigma 10-20 where the sharpness centre was noticably off to one side. Check it out:
http://www2.garbz.com/DSC_7027.jpg Compare the centre left of the image to the centre right. I sent this lens back to Sigma and they advised that one of the elements was internally askew and repaired.
A lens used on the camera should be pretty plum. The mounts on lenses are usually machined quite well.
Quote:
Originally Posted by Spookyer
Cool. Do you mind sharing ISO you used?
Cheers
brett
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Certainly ISO640. I may have pulled this value from where the sun don't shine on the night, I didn't really have any method behind why I chose ISO640.
