7-2-2022 Images: Quark+Lunt 40mm double stack at 102mm aperture
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7-2-2022 Images: Quark+Lunt 40mm double stack at 102mm aperture
Hi All,
Yesterday, I had a very rushed session looking between clouds and testing out a new tracking motor system on my mount (OnStep). These are taken with an AT102ED f/7 and quark chromosphere followed by a Lunt 40mm etalon in the telecentric output of the quark. Camera with 4.8um pixels, no reducer. Reasonably happy with the images, despite some dust bunnies…
-Derek
B&W:
Colorized:
Yesterday, I had a very rushed session looking between clouds and testing out a new tracking motor system on my mount (OnStep). These are taken with an AT102ED f/7 and quark chromosphere followed by a Lunt 40mm etalon in the telecentric output of the quark. Camera with 4.8um pixels, no reducer. Reasonably happy with the images, despite some dust bunnies…
-Derek
B&W:
Colorized:
- Martin_S
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Re: 7-2-2022 Images: Quark+Lunt 40mm double stack at 102mm aperture
These are very good Derek, what exposure and gain settings did you use?
Martin
Martin
H alpha : ,Skywatcher 120mm F8 open frame refractor, a tilted 2" 7nm H-alpha filter as a sub energy rejection filter, Baader TZ4 telecentric focal extender, Player One energy rejection filter, Combo Quark Chromosphere, Naked PST etalon for double stacking, ASI74mm camera
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Re: 7-2-2022 Images: Quark+Lunt 40mm double stack at 102mm aperture
Thanks Martin! I believe these were about 7.5ms with gain somewhere in the middle of my available range. The metadata did not save with the raw files unfortunately and my note taking was not great. Eventually, I will rememebr to document properly.
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Re: 7-2-2022 Images: Quark+Lunt 40mm double stack at 102mm aperture
Derek:
Very good session, you got beautiful images.
Thanks for sharing.
Eric.
Very good session, you got beautiful images.
Thanks for sharing.
Eric.
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Re: 7-2-2022 Images: Quark+Lunt 40mm double stack at 102mm aperture
You do well with color. Beautiful!!
Lunt 8x32 SUNoculars
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
Lunt, Coronado, TeleVue, Orion and Meade eyepieces
Visual Observer
" Way more fun to see it! "
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
Lunt, Coronado, TeleVue, Orion and Meade eyepieces
Visual Observer
" Way more fun to see it! "
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Re: 7-2-2022 Images: Quark+Lunt 40mm double stack at 102mm aperture
Great images, Derek.
Stu.
Stu.
H-alpha, WL and Ca II K imaging kit for various image scales.
Fluxgate Magnetometers (1s and 150s Cadence).
Radio meteor detector.
More images at http://www.flickr.com/photos/solarcarbon60/
Fluxgate Magnetometers (1s and 150s Cadence).
Radio meteor detector.
More images at http://www.flickr.com/photos/solarcarbon60/
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Re: 7-2-2022 Images: Quark+Lunt 40mm double stack at 102mm aperture
These are super! I really love the colours
Alexandra
Alexandra
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Re: 7-2-2022 Images: Quark+Lunt 40mm double stack at 102mm aperture
Thanks so much for the kind words everyone. I'm really enjoying the learning process for this.
For color, I use curves in Gimp with settings close to those in this tutorial by John O'Neal: https://www.photographingspace.com/colo ... ar-images/.
The curves end up looking like this:
For color, I use curves in Gimp with settings close to those in this tutorial by John O'Neal: https://www.photographingspace.com/colo ... ar-images/.
The curves end up looking like this:
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Re: 7-2-2022 Images: Quark+Lunt 40mm double stack at 102mm aperture
Very nice indeed, the mod is working well!
http://brierleyhillsolar.blogspot.co.uk/
Solar images, a collection of all the most up to date live solar data on the web, imaging & processing tutorials - please take a look!
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Re: 7-2-2022 Images: Quark+Lunt 40mm double stack at 102mm aperture
A wonderful collection of images!
Thanks for sharing,
Arne
Thanks for sharing,
Arne
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Re: 7-2-2022 Images: Quark+Lunt 40mm double stack at 102mm aperture
Hi Derek,
Nice images! Your DS system works well and judging by the uniformity of the field (if you have some dust bunnies then without a flat frame?), the Quark is quite good.
May I play a bit..? I just touched Shadow and Highlight tool in Astra Image to pop up the limb and nice prom out there.
thanks for sharing
Leo
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Re: 7-2-2022 Images: Quark+Lunt 40mm double stack at 102mm aperture
Thanks Leo,
You really brought out more detail in that image. I will have a go with the shadows/highlight to see if I can reproduce. I am still a novice at this sort of image processing. No flats here so I guess the uniformity is ok. I know the quark is not totally uniform as I have measured transmission/tuning across the etalon with a hydrogen lamp. Apparently that nonuniformity did not translate into large changes in the images.
-Derek
You really brought out more detail in that image. I will have a go with the shadows/highlight to see if I can reproduce. I am still a novice at this sort of image processing. No flats here so I guess the uniformity is ok. I know the quark is not totally uniform as I have measured transmission/tuning across the etalon with a hydrogen lamp. Apparently that nonuniformity did not translate into large changes in the images.
-Derek