Today's sun 10th October 2021 -Full Disc

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Radon86
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Today's sun 10th October 2021 -Full Disc

Post by Radon86 »

Hi all !
Hope you are all well. I have to get ready to go back to work soon, so this may be my last post for some time. There was good weather and patchy cloud, so I tried my "winter gear"", 60mm guidescope but I put it on my EQ3 Pro synscan mount which is driven EQ mount. I managed 2 frames with good removal of NR by matched histograms in Firecapture.

Anyhow, I did some processing, ImPPG, sigma 1.7885. I looked at Montana's guide, and she advised 500 iterations of this, so I did. Although ImPPG recommend 50 to 70 iterations. I don't know what the answer is. Can anyone advise ???

Here is my process, after levels, ImPPG 500 iterations at sigma 1.7885, high pass filters x2 and illumination correction in Photoshop.
(cut to jpeg files to reduce space).

If anybody wants to have a go at my original stacked and merged files, I can give you a dropbox link...

Thanks for your attention.
Magnus
Sun-2panes-ASI174mm-20211010-ImPPG-PS-colour.jpg
Sun-2panes-ASI174mm-20211010-ImPPG-PS-colour.jpg (301.07 KiB) Viewed 359 times
Sun-2panes-ASI174mm-20211010-ImPPG-PS-mono.jpg
Sun-2panes-ASI174mm-20211010-ImPPG-PS-mono.jpg (214.34 KiB) Viewed 359 times


Solar: H-alpha": Quark Chromosphere filter; Baader white light filters
Scopes: Altair Astro Travel ED70mm (F 420mm, D=70mm);; Skywatcher 90mm (F 910mm D=90mm); GSO focuser;;Altair Astro 60mm guidescope (D=60mm,F=225mm)
Cameras: ASI120mm-S,ASI174mm
Mount: SW HEQ5 Pro, SW EQ3 Pro Synscan (SW = Skywatcher),Vixen Polarie tracker (portable setup)
Accessory: SW Auto-focuser
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Montana
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Re: Today's sun 10th October 2021 -Full Disc

Post by Montana »

The full disc looks excellent Magnus :bow :hamster: try lots of variations in ImPPG, one size never fits all ;) try and get a balance of fine detail without getting bad ringing. I find that doing more iterations makes you do less on the slider so finer detail comes out. However this is what is best in my setup and not necessarily yours. Have a play with all the sliders and look closely to what happens to the noise levels and also the details. You can play for ages but at least IMPPG is fast and responsive :)

Alexandra


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Radon86
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Re: Today's sun 10th October 2021 -Full Disc

Post by Radon86 »

Hi Alexandra,

Thanks Alexandra for the advice on ImPPG. Yes, I will try and look at noise and detail, and ImPPG processing a bit more. I am making some progress. Thanks for the SPoD !

:bow

Magnus


Solar: H-alpha": Quark Chromosphere filter; Baader white light filters
Scopes: Altair Astro Travel ED70mm (F 420mm, D=70mm);; Skywatcher 90mm (F 910mm D=90mm); GSO focuser;;Altair Astro 60mm guidescope (D=60mm,F=225mm)
Cameras: ASI120mm-S,ASI174mm
Mount: SW HEQ5 Pro, SW EQ3 Pro Synscan (SW = Skywatcher),Vixen Polarie tracker (portable setup)
Accessory: SW Auto-focuser
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