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Posts for: Albuqshutterbug
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Sep 12, 2022 11:52:48   #
nikonshooter wrote:
Well...since we are neighbors, would you ask you arthritis if we are ever going to have clear skies?


You were one of the first imagers I looked for when I came back a few months ago.
Glad to see you are still collecting photons.
I still dabble with astrophotography but spend most of my imaging time on solar these days.

This is a weather site that I like and it’s more correct more often than most.

https://www.astrospheric.com/apom/?src=mobilebottom

It can provide a decent amount of information if you dig a bit.
Stay safe.
Jim
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Sep 11, 2022 14:33:09   #
Ballard wrote:
Excellent sunspot detail. Nice work.


Thank you very much.
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Sep 11, 2022 14:31:52   #
alberio wrote:
👍👍👍


Thank you 😊
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Sep 10, 2022 20:28:02   #
This is a very nicely captured image.
All of your lines are clean and the surface is loaded with detail.
This should go on a wall.
Well done.
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Sep 10, 2022 20:25:31   #
It’s a very nice image.
This is another one that I have had decent results with.
Very well done.
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Sep 10, 2022 20:23:18   #
Nicely captured.
This is one that I have had decent results with.
Beautiful job.
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Sep 10, 2022 20:22:07   #
Outstanding work.
I haven’t been able to capture this one very well. I have had much better luck with the cigar galaxy.
Nicely done.
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Sep 10, 2022 20:20:08   #
Beautiful capture of a difficult subject.
Very nicely done.
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Sep 10, 2022 16:13:50   #
Two shots of the same sunspot using two different filters.
Both shot with a Lunt 60mm Pressure tuned solar telescope using a Skyris 236C color CMOS video camera.
Shooting at 40 FPS for 30 seconds yields a just under 1200 frame video.
I stacked the best 50 frames from each set and processed with Photoshop 2022.
The first shot is using a Lunt Herschel wedge for white light.
The second shot is using a Lunt CaK blocking filter for ultra violet.
Stay safe...


(Download)


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Sep 10, 2022 16:04:55   #
Shot with a Lunt 60mm pressure tuned solar telescope.
I used a Skyris 236M CMOS video camera with a 2X barlow.
This is a stack of 50 images from a 1200 image video file in Autostakkert3.
Image was sharpened in Photoshop and is uncropped.
Stay safe...


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Aug 17, 2022 13:40:24   #
profbowman wrote:
Thanks for stitching images together and posting the result, Jim. It looks good. --Richard


Thank you very much for the compliment.
The Skyris 236 series does a great job of capturing but the sensor is small. I just have to capture more photons to get a full image.
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Aug 17, 2022 13:37:16   #
bwana wrote:
Great image!


Thank you very much.
It’s an expensive filter but very well made.
I wasn’t sure if it was something I was going to use a lot but it’s becoming a favorite.
Stay safe
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Aug 17, 2022 13:33:38   #
Ballard wrote:
Very nice Calcium K-line shots. How narrow band is your filter, does it cover both the K and H lines?


Thank you for your compliment.

H and K are close to the 393.4nm wavelength. The Lunt filter is specific to K line.
H is lower and is sometimes captured with less specific filters like Daystar.
I hope this answers your question.
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Aug 11, 2022 12:20:17   #
Here is the stitched image.
Yep those spots are pretty large.
It creates a pretty large file and this has been reduced a bit.
Jim

Here’s a blurb from the Lunt description of the filter spectrum.

“The Calcium K modules line is centered at 393.4 nm. This wavelength is considered to be slightly outside the visible spectrum on the UV side. While most people can visually see the violet color of the wavelength, many cannot resolve the contrast due to yellowing of the cornea. People who have had cataract surgery are often able to see considerable detail. But, it is for these reasons that the Ca-K line is typically studied via the use of cameras, which are able to provide stunning details.“


(Download)
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Aug 10, 2022 00:32:16   #
bwana wrote:
Very nice! The filter does an excellent job on contrast.

bwa


Thank you.
I wasn’t sure if I would like this but it sure pulls the detail.
Jim
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