Finally, I have fixed the last problems that plagued my full disk (the halo around the sun due to internal reflection). The dark-light gradient now looks smooth. Though I still see some part of the disk has blurred detail. Probably not seeing since I see this problem in every shot that I took this morning in the same spot. Is it possible that the low contrast region of the Quark caused this (the blurred region also are the low contrast due to etalon inhomogeneity).
Here is my 2 version of the full disk both in positive and inverted with colorization.
I'd like to hear your opinions.
30 Nov Full Disk both positive and negative
- minhlead
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30 Nov Full Disk both positive and negative
Minh.
Loves from Viet Nam <3
My gear:
Scope: SkyRover (Kunming Optics) 152mm F/6 Doublets
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Camera:
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Quark Chromosphere Doublestacked with PST etalon
Loves from Viet Nam <3
My gear:
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Re: 30 Nov Full Disk both positive and negative
Nicely done, Minh! Thanks for the view!
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Orion 70mm Solar Telescope
Celestron AstroMaster Alt/Az Mount
Meade Coronado SolarMax II 60 DS
Meade Coronado SolarMax II 90 DS
Meade Coronado AZS Alt/Az Mount
Astro-Tech AT72EDII with Altair solar wedge
Celestron NexStar 102GT with Altair solar wedge
Losmandy AZ8 Alt/Az Mount
Sky-Watcher AZGTI Alt-Az GoTo mount
Cameras: ZWO ASI178MM, PGR Grasshopper, PGR Flea
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Re: 30 Nov Full Disk both positive and negative
Thanks, James
Minh.
Loves from Viet Nam <3
My gear:
Scope: SkyRover (Kunming Optics) 152mm F/6 Doublets
Mount: JTW Tridents GTR
Camera:
PlayerOne Apollo M-Max
Quark Chromosphere Doublestacked with PST etalon
Loves from Viet Nam <3
My gear:
Scope: SkyRover (Kunming Optics) 152mm F/6 Doublets
Mount: JTW Tridents GTR
Camera:
PlayerOne Apollo M-Max
Quark Chromosphere Doublestacked with PST etalon
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Re: 30 Nov Full Disk both positive and negative
Thanks Minh for your renditions, particularly showing the number of proms today
Cheers
Terry
Cheers
Terry
- minhlead
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Re: 30 Nov Full Disk both positive and negative
Thanks TerryEGRAY_OBSERVATORY wrote: ↑Tue Nov 30, 2021 8:38 pm Thanks Minh for your renditions, particularly showing the number of proms today
Cheers
Terry
Minh.
Loves from Viet Nam <3
My gear:
Scope: SkyRover (Kunming Optics) 152mm F/6 Doublets
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PlayerOne Apollo M-Max
Quark Chromosphere Doublestacked with PST etalon
Loves from Viet Nam <3
My gear:
Scope: SkyRover (Kunming Optics) 152mm F/6 Doublets
Mount: JTW Tridents GTR
Camera:
PlayerOne Apollo M-Max
Quark Chromosphere Doublestacked with PST etalon
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Re: 30 Nov Full Disk both positive and negative
Wow! the inverted really sings
Can you show a single pane to see where the blurred bit is? I am not sure where in the full disc are the problems in relation to each pane.
Alexandra
Can you show a single pane to see where the blurred bit is? I am not sure where in the full disc are the problems in relation to each pane.
Alexandra
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Re: 30 Nov Full Disk both positive and negative
This is single panel shot. I used a 2 inches reducer to get the FD to fit into my tiny 174 chip with my Quark. But as I said in my latest post, it seems I am taking too long exposure at 2ms. 0.5ms work much better with less blurred detail so I think I'd stick with shorter exposure time for now.
Minh.
Loves from Viet Nam <3
My gear:
Scope: SkyRover (Kunming Optics) 152mm F/6 Doublets
Mount: JTW Tridents GTR
Camera:
PlayerOne Apollo M-Max
Quark Chromosphere Doublestacked with PST etalon
Loves from Viet Nam <3
My gear:
Scope: SkyRover (Kunming Optics) 152mm F/6 Doublets
Mount: JTW Tridents GTR
Camera:
PlayerOne Apollo M-Max
Quark Chromosphere Doublestacked with PST etalon
- minhlead
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Re: 30 Nov Full Disk both positive and negative
I do love the inverted, especially when colorized. The proms show up much more naturally on inverted. But positive have higher contrast IMO.
Minh.
Loves from Viet Nam <3
My gear:
Scope: SkyRover (Kunming Optics) 152mm F/6 Doublets
Mount: JTW Tridents GTR
Camera:
PlayerOne Apollo M-Max
Quark Chromosphere Doublestacked with PST etalon
Loves from Viet Nam <3
My gear:
Scope: SkyRover (Kunming Optics) 152mm F/6 Doublets
Mount: JTW Tridents GTR
Camera:
PlayerOne Apollo M-Max
Quark Chromosphere Doublestacked with PST etalon