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Old 21-08-2022, 05:55 PM
Startrek (Martin)
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Startrek is offline
 
Join Date: Dec 2017
Location: Sydney and South Coast NSW
Posts: 6,710
Alex,
The colour in these latest images is spot on but the file size reduction has probably compromised resolution and quality
I may have sent these DSS doc’s to you before but its my latest revision in regard to DSS and Startools
See attached

My Helix from last year had the following basic ST workflow ( I’m capturing the Helix tonight and tomorrow night again)
1st AutoDev to inspect
Bin 50% to reduce noise ( as long as your oversampled you can Bin to reduce noise ) Your 115 refractor has a focal length of 805mm l think so using the 2600MC and no reducers will yield a image scale of 0.96 arc sec per pixel , so a 71% Bin should work
Crop edges ready for Wipe
Wipe default , bump up dark anomalie filter to 4 pixels
2nd and final AutoDev stretch, use tight ROI around Helix and bump up “ignore fine detail to between 2.0 and 6.0 pixels to achieve the best detail and lowest noise
Contrast use default
HDR not needed
Set Star mask and invert so image is green and stars are white and not sampled
Sharpen use default DSO at 300%
SV Deconvolution ( I’ve just learn to use use the new SV Decon )
Superstructure use Isolate preset and set to 30 to 40
Clear Star Mask
Colour to taste
Final noise reduction ( usually 4.0 to 6.0 pixels depending on how severe noise is )
Save

Hope the above and attached is helpful

Cheers
Martin
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