August 13th LS80 DS
August 13th LS80 DS
It was a short session today due to uncooperative clouds but the recently acquired LS80 demanded attention. I added the second PT etalon to the scope and tried it out. Breaks in the clouds were short lived and I rushed the tuning procedure as the images will confirm. Even illumination and detail across the whole disk is a challenge and I am impressed with those who can achieve such images. Guess I'll just have to keep practicing.
Here are todays images.
Phil
This is what I saw most of the time. Reminds of the Moon.
My attempt at tuning the etalons. I really don't see a lot of improvement over the single stack, maybe due to the sky conditions. Hazy.
Prooms were dim in the double stack and I tried to enhance them by inversion with limited success.
Here are todays images.
Phil
This is what I saw most of the time. Reminds of the Moon.
My attempt at tuning the etalons. I really don't see a lot of improvement over the single stack, maybe due to the sky conditions. Hazy.
Prooms were dim in the double stack and I tried to enhance them by inversion with limited success.
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Re: August 13th LS80 DS
These are fabulous Phil even with a double stack you will not see much difference on a quiet sun, you will notice the difference on the limb at a higher magnification as you will not see the double limb.
Alexandra
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Re: August 13th LS80 DS
Phil you are really going to enjoy your setup as the activity ramps up .These are great discs.
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Re: August 13th LS80 DS
Very good Phil!
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!
Re: August 13th LS80 DS
Thank you all.
Alexandra, That's good to know. I was a little underwhelmed with the addition of the second etalon.
Derek, I can hardly wait for some activity on the sun. In the meantime the best solar images I seen recently are your sunsets! Phenomenal.
I have yet to produce an even illumination when double stacking. In the twenty minutes or so of sunlight since acquiring the scope, I tried rotating components, moving the sun around in the fov, and twisting the tuning knobs. I don't like to resort to post processing tricks, but.
Here is another shot from the same day with the scale reduced by 20% and field flattened in post. Less disk detail but plenty of room for giant proms.
Phil
Alexandra, That's good to know. I was a little underwhelmed with the addition of the second etalon.
Derek, I can hardly wait for some activity on the sun. In the meantime the best solar images I seen recently are your sunsets! Phenomenal.
I have yet to produce an even illumination when double stacking. In the twenty minutes or so of sunlight since acquiring the scope, I tried rotating components, moving the sun around in the fov, and twisting the tuning knobs. I don't like to resort to post processing tricks, but.
Here is another shot from the same day with the scale reduced by 20% and field flattened in post. Less disk detail but plenty of room for giant proms.
Phil
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Re: August 13th LS80 DS
Beautiful images Phil
Looks like the DS LUNT80 is a winner
Looks like the DS LUNT80 is a winner
Pedro Re'
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https://pedroreastrophotography.com/
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Re: August 13th LS80 DS
Looking good, Phil. It can be really tricky getting an evenly illuminated field of view. Tweaking back and forth between the etalons and rotating the front etalon is the only way. Sometimes the tweaks are really tiny, looking for the ‘orange peel’ texture all around.
That said, whatever you’ve done in post processing works.
Stu.
That said, whatever you’ve done in post processing works.
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/
Re: August 13th LS80 DS
Thanks guys for the kind words. I am realizing that full disk imaging is quit different that narrow field or high resolution in terms of capture and processing. Throw in a second etalon and the challenge to achieve a quality image intensifies greatly.
Stu, thanks for taking the time. I will try your suggestions and post the results. This setup has the two pressure tuning etalons and a filter between them at the rear of the scope. Sound advice, thank you.
Post processing of the last image was only a pseudo flat (blur and divide) and a histogram stretch using a gradient mask. I got lucky.
Phil
Stu, thanks for taking the time. I will try your suggestions and post the results. This setup has the two pressure tuning etalons and a filter between them at the rear of the scope. Sound advice, thank you.
Post processing of the last image was only a pseudo flat (blur and divide) and a histogram stretch using a gradient mask. I got lucky.
Phil
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Re: August 13th LS80 DS
Hi Phil...
The DS image turned out quite nice
The DS scope has only revealed subtle improvements with the low activity, but there are usually a few filaments or slight bright spots that stand out in the DS images. It will shine once we get some more activity!!!
Brian
The DS image turned out quite nice
The DS scope has only revealed subtle improvements with the low activity, but there are usually a few filaments or slight bright spots that stand out in the DS images. It will shine once we get some more activity!!!
Brian
Brian Colville
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
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