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Old 15-08-2012, 12:00 AM
Garbz (Chris)
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Garbz is offline
 
Join Date: May 2012
Location: Brisbane
Posts: 646
Quote:
Originally Posted by alpal View Post
How much processing did you do?
e.g. did you use HDR toning?

Anyway - well done.
Thanks, Quite a bit of processing in this one. I actually did use HDR. My first attempt at HDR with pixinsight, talk about difficult and counter intuitive. I couldn't actually figure out how to tone the value down so I ended up making a mask which was very grey with black stars to stop the HDR tool from overdoing it and from destroying the stars. The end result is only a slight HDR effect with the majority of detail being brought out through about 5-6 different curve transformations.

Other than that, just some saturation, minor noise reduction, background correction and slight deconvolution.

Quote:
Originally Posted by Nico13 View Post
I'd be pretty happy with that, the only comment I have, well a question really, is the C8 a new one or an older one as it looks like you have the same problem I have with my old Meade with a bit of mirror flop, the mirror tilts a little when you focus adjust and it puts one side or in your case the bottom left of the image out of focus a bit.
It's an older C8. I don't think it's mirror flop but rather the crop of M8 was not from the very middle of the frame. I get quite bad vignetting with my DSLR when using the entire 35mm frame. It's better with the f/6.3 focal reducer and cropping to APS-C sized sensor area, but it's still quite bad. Just as well too because DeepSkyStacker doesn't like 36megapixel images much
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