A by-product of having my mount sitting at iOptron being repaired is that I have way too much time to endlessly fiddle with existing data.
This M13 represents 5.25 hrs of 60s subs, with a near-full moon, using:
iOptron RC6 + AP CCDT67 reducer @ 993mm focal length
QHY183C
Orion TOAG + QHY5III462C
CEM40
KStars/Ekos
Siril
ST8
Workflow for this version: Bin 50%, Crop, Wipe, Contrast, HDR, Decon, Color, Superstructure dim small, Superstructure saturate, NR
Notes:
Wipe: Earlier with these data I had been trying to go as mild as I thought I could get away with. Then I tried being quite aggressive and it seemed to make a positive difference.
Autodev: Turned Shadow Linearity down to 18% and bumped Detector Gamma up to 1.10
HDR: I had been using Optimize to keep from over-dimming the core, but this time I started with the Reveal preset then dropped Gamma Highlight to 1.10 and raised Highlights Detail Boost to 70%. This somewhat tamed the core while also brightening the stars (all the stars) without seeming to raise the background noise to an unacceptable level.
I have, as ever, several color variants. The one I'm posting here is toward the bluer-end of the variants.
Yet another... M13
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Re: Yet another... M13
Same data from your Star Colors of M13 thread earlier? I think this is the best one yet.
The blues and the scattered, yet strong, golds seem much closer to the NASA example.
The blues and the scattered, yet strong, golds seem much closer to the NASA example.
Re: Yet another... M13
Thanks, Mike! Yep - same data. Figured I'd move over here as I'm not looking for "troubleshooting" any more. Of course I'll learn more if people see issues and point them out.