Imaging from home (T300 Solar newton, K-Line
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Imaging from home (T300 Solar newton, K-Line
I was quite happy about the picture taken from 3000 altitude (St Véran, French Alps) last year and this year.
I wanted to try the same setup in my area, in the "heights" of Belgium, at about 600m altitude.
Here, the best result after selecting and some tweaking + image size reduction:
The full resolution is here.
Because of the extensive treatment (Deconvolution + denoising) I needed to apply, I'm afraid I will travel once more to the French Alps for imaging.
CS
Alex
2020-09-14
Sourbrodt (600mAlt.)
T300 solar
FFC
KLine
ASI174
I wanted to try the same setup in my area, in the "heights" of Belgium, at about 600m altitude.
Here, the best result after selecting and some tweaking + image size reduction:
The full resolution is here.
Because of the extensive treatment (Deconvolution + denoising) I needed to apply, I'm afraid I will travel once more to the French Alps for imaging.
CS
Alex
2020-09-14
Sourbrodt (600mAlt.)
T300 solar
FFC
KLine
ASI174
- DeepSolar64
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Re: Imaging from home (T300 Solar newton, K-Line
Very nice. What scope? What aperture ? 300mm?
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Re: Imaging from home (T300 Solar newton, K-Line
Hi,
WOW, just WOW to see the rice grain in such a magnification ...
WOW, just WOW to see the rice grain in such a magnification ...
regards Rainer
Observatorio Real de 14
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North 22° West 101°
Observatorio Real de 14
San Luis Potosi Mexico
North 22° West 101°
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Re: Imaging from home (T300 Solar newton, K-Line
I love granulation images. The individual granules are so small they test the scope and seeing. To get them like this says a lot positive for both. And to the skills of the imager as well!
Getting them like this visually is not easy either. Contrast is pretty low and a filter, like a 540nm green filter seems to help me. But I have never seen them near this well. An imager can increase contrast like no filter can and I am limited by aperture. I don't have anything outfitted for solar beyond 102mm.
Getting them like this visually is not easy either. Contrast is pretty low and a filter, like a 540nm green filter seems to help me. But I have never seen them near this well. An imager can increase contrast like no filter can and I am limited by aperture. I don't have anything outfitted for solar beyond 102mm.
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
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Re: Imaging from home (T300 Solar newton, K-Line
Very impressive indeed!
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: Imaging from home (T300 Solar newton, K-Line
Excellent granulation imagery Alex.
Thanks vm
Terry
Thanks vm
Terry
Re: Imaging from home (T300 Solar newton, K-Line
Wonderful granulation images with lots of detail!
Would you mind to elaborate on your remark about deconvolution and denoising? Which software did you use for that, in particular for denoising?
I'm asking because captured a couple of granulation videos last week, and my processing attempts were not successful so far. Sharpening with imppg I keep getting a granulation pattern spoiled by lots of dots and wrinkles that look like sharpened noise. Using Registax I can reduce the noise, but the images come out too soft, so I'd appreciate hints how to denoise granulation images!
Kind regards,
Frank
Would you mind to elaborate on your remark about deconvolution and denoising? Which software did you use for that, in particular for denoising?
I'm asking because captured a couple of granulation videos last week, and my processing attempts were not successful so far. Sharpening with imppg I keep getting a granulation pattern spoiled by lots of dots and wrinkles that look like sharpened noise. Using Registax I can reduce the noise, but the images come out too soft, so I'd appreciate hints how to denoise granulation images!
Kind regards,
Frank
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Re: Imaging from home (T300 Solar newton, K-Line
I get this if I use LR in ImPPG, I use USM (for CaK) in ImPPG now and don't get it...
http://brierleyhillsolar.blogspot.co.uk/
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Re: Imaging from home (T300 Solar newton, K-Line
Absolutely marvellous image Alex...well done
Brian
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Maple Ridge Observatory
Cambray, ON Canada
Photos: https://www.flickr.com/photos/185395281@N08/albums
10'x15 Roll-off Roof Observatory
Takahashi EM400 Mount carrying:
C14 + Lunt 80ED
Deep Sky Work - ASI294MM Pro+EFW 7x36/Canon 60D (Ha mod), ONAG
Planetary Work - SBIG CFW10, ASI462MM
2.2m Diameter Dome
iOptron CEM70G Mount carrying:
Orion EON 130ED, f7 OTA for Day & Night Use
Ha Setup: Lunt LS80PT/LS75FHa/B1200Ha + Home Brew Lunt Double Stack/B1800Ha on the Orion OTA + Daystar Quantum
WL, G-Band & CaK Setup: Lunt Wedge & Lunt B1800CaK, Baader K-Line and Altair 2nm G-Band filter
ASI1600MM, ASI432MM, ASI294MM Pro, ASI174MM, ASI462MM
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Re: Imaging from home (T300 Solar newton, K-Line
Absolutely fabulous it is wonderful to see the K grains too
I use NeatImage for denoise and love it, I couldn't live without it now.
Alexandra
I use NeatImage for denoise and love it, I couldn't live without it now.
Alexandra
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Re: Imaging from home (T300 Solar newton, K-Line
I just tried this method Mark, the results are really good.marktownley wrote: ↑Sun Sep 27, 2020 2:18 pmI get this if I use LR in ImPPG, I use USM (for CaK) in ImPPG now and don't get it...
Martin
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Re: Imaging from home (T300 Solar newton, K-Line
Sorry, I was off yesterday.
Thank you for the nice comments.
The scope is indeed a 300mm aperture.
I was using Neatimage in the past to denoise, the free version however.
The free version supports only 8bit.
So I decide to denoise under Pix Insight. It allows various denoising possibilities.
I used ACDNR (Adaptive Contrast-Driven Noise Reduction).
For the deconvolution also, I used Pix Insight.
I tested various functions, but I can't remember which one I kept. Probably a deconvolution with Van Cittert function.
CS
Alex
Thank you for the nice comments.
The scope is indeed a 300mm aperture.
I was using Neatimage in the past to denoise, the free version however.
The free version supports only 8bit.
So I decide to denoise under Pix Insight. It allows various denoising possibilities.
I used ACDNR (Adaptive Contrast-Driven Noise Reduction).
For the deconvolution also, I used Pix Insight.
I tested various functions, but I can't remember which one I kept. Probably a deconvolution with Van Cittert function.
CS
Alex
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Re: Imaging from home (T300 Solar newton, K-Line
could you post a raw unprocessed image Alex? . Your finished results are impressive.
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
Re: Imaging from home (T300 Solar newton, K-Line
Thanks, Alex! That's enough information to start! I haven't used PI for solar images yet, but I'll definitely try that.
Together with Alexandra's and Mark's suggestions I have now a variety of possible ways of getting rid of the noise to try out, and next week I will hopefully have a bit of time for that!
Regards,
Frank
Together with Alexandra's and Mark's suggestions I have now a variety of possible ways of getting rid of the noise to try out, and next week I will hopefully have a bit of time for that!
Regards,
Frank