Quote:
Originally Posted by gregbradley
A sparkling image and nice impact.
Did you use flats? There is some vignetting occurring there - see the circle of the light part of the image.
You may want to also check your setup to make sure any adapters etc are widened where they may be constricting the light path. Kind of like plumbing and making sure an aperture isn't reduced too much somewhere.
Greg.
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Thanks for the feedback Greg. Yes I use flats. Big time. I have so much vignetting I cannot do without them. I flat field now in CCD Stack and it's working great. The faint central circle you see is not vignetting. It's a reflection halo from the coma corrector on the face of the clear glass of the camera nose piece. I used the wrong nose piece and should have used the UV/IR instead of the clear one to minimise the effects. That's easy enough to remove though but I still left a bit of it in the final as not to make the center of the nebulosity too harsh and saturated. I won't start on where the light path gets restricted in my scope, there are too many bottle necks
but that's the best I can do with what I've got at the moment. It's a $300.00 scope after all not designed for imaging in the first place. But it got me up to speed real quick in learning processing.
Quote:
Originally Posted by dugnsuz
Awesome image Marc - very smooth processing.
The diffraction spikes overwhelm the image IMO, but that's moi!!
Also there seems to be reflection "donuts" through the image - not to
sure what's causing those!!??
Very nice
Doug
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Thanks Doug. Oui! 600s exposures and a real clear night will do that to my pictures with this scope. I kind of like them. It's Xmas time after all.
. Although those donuts are pretty ugly and I need a krispy kream PS action
