Quote:
Originally Posted by dylan_odonnell
Looks great! The dust details have come through amazingly after the star reduction. There is some horizontal red and green across the frame.. is that just an artefact from the mosaicking?
But yeh, stunning shot. Probably Malin worthy!
d
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Thanks Dylan. The stars have an average FWHM of ~8" (~3 pixels) which is tiny when compared so the fact that even with a Nikon D810 (36mp sensor) will likely have FWHM closer to 35-40" with a 85mm lens. If I wanted to be REALLY adventurous I could actually do some deconvolution but I am probably too lazy to do that on every frame
The green is something that I attribute to using a OSC and not doing enough green reduction during processing (I was trying not to do too much). There is a red/blue banding in the image that is a consequence of exposure times being too short. It is in the background of nearly every frame and I haven't quite figured out how to remove it. It is readout noise generated by the camera as it is the same in every frame (2 blue bands and 3 red bands). In higher signal areas it isn't as visible as it is swamped by signal.
Quote:
Originally Posted by Shiraz
Colin, that is a wonderful image - great to just cruise around in. Thanks for posting it.
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You're welcome Ray, once I actually finish this I'll have to put up a 50% res or something for those dedicated pixel peepers