May 26 2023 Ca K closeups SS and DS

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LeoD
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May 26 2023 Ca K closeups SS and DS

Post by LeoD »

Hi all,
today I decided to make Ca K DS from two available standard Lunt filters, putting them close to each other with a little tilt, and compare it with SS. The resulting images were a bit dark, but acceptable. The noise level of 174 camera in the DS was normal to stack 100 frames. Fibrils began to appear in the dipole and penumbra area, and reverse granulation became more contrasting. I made the lighter SS images look like DS using the hdr Ps plugin, for comparison. The seeing was Ok for full aperture.
Setup: 120/1000, TV 5x, ASI174, Lunt1800 and Lunt600
Leo
Attachments
DS
DS
Sun 20230526-0716_7_cOPs_DS.jpg (797.66 KiB) Viewed 629 times
SS
SS
Sun 20230526-0637_1_cOPstd SS.jpg (678 KiB) Viewed 629 times
DS
DS
Sun 20230526-0718_1_cO2Pstd_DS.jpg (742.12 KiB) Viewed 629 times
SS
SS
Sun 20230526-0636_3_cO3Pstd_SS.jpg (775.83 KiB) Viewed 629 times
AR3311 3314
AR3311 3314
Sun 20230526-0710_0_cOPs DS.jpg (722.94 KiB) Viewed 629 times


christian viladrich
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Re: May 26 2023 Ca K closeups SS and DS

Post by christian viladrich »

Very well done Leo !!


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Re: May 26 2023 Ca K closeups SS and DS

Post by rigel123 »

Excellent!


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Re: May 26 2023 Ca K closeups SS and DS

Post by DeepSolar64 »

Leo,
These are really nice. The supergranulation is very easy to see. The images are sharp with nice contrast too.

James


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Re: May 26 2023 Ca K closeups SS and DS

Post by Valtori »

Super shots in CaK HR, Leo!!

DS is very decent!)

Val


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Re: May 26 2023 Ca K closeups SS and DS

Post by Dennis »

Stunning images Leo and interesting comparison of ds and ss.
DS really seems to be worth upgrading to. How do you tilt the filters?


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Re: May 26 2023 Ca K closeups SS and DS

Post by arnedanielsen »

Excellent images and a very nice comparison Leo!

Thanks for sharing,
Arne


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Re: May 26 2023 Ca K closeups SS and DS

Post by Petrus »

Fantastic results Leo! Would you mind sharing more details about how you made a double stack with two Lunt CaK filters?


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Re: May 26 2023 Ca K closeups SS and DS

Post by marktownley »

These came out very well Leo!


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Re: May 26 2023 Ca K closeups SS and DS

Post by LeoD »

Thank you all, very appreciated!
christian viladrich wrote: Fri May 26, 2023 10:03 pm Very well done Leo !!
I was inspired by your recent CaK SS/DS tests :)
I'm curious to make measurements of filters, also B600 i have is quite old and the band could migrate significantly
Petrus wrote: Sat May 27, 2023 7:21 pm Fantastic results Leo! Would you mind sharing more details about how you made a double stack with two Lunt CaK filters?
I take the only 2.4A B600 filter from the second Lunt CaK and put it right next to B1800. As it was only the first test, I connected it with a flexible rubber gasket that could be tilted and seen in live mode on the screen.
see the picture below
sorry for belated answer
Leo
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20230531_211315 B1800&B600.jpg
20230531_211315 B1800&B600.jpg (298.48 KiB) Viewed 409 times


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Re: May 26 2023 Ca K closeups SS and DS

Post by ffellah »

These are excellent, Leo, well done.

Franco


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Re: May 26 2023 Ca K closeups SS and DS

Post by Petrus »

LeoD wrote: Wed May 31, 2023 7:19 pm Thank you all, very appreciated!
christian viladrich wrote: Fri May 26, 2023 10:03 pm Very well done Leo !!
I was inspired by your recent CaK SS/DS tests :)
I'm curious to make measurements of filters, also B600 i have is quite old and the band could migrate significantly
Petrus wrote: Sat May 27, 2023 7:21 pm Fantastic results Leo! Would you mind sharing more details about how you made a double stack with two Lunt CaK filters?
I take the only 2.4A B600 filter from the second Lunt CaK and put it right next to B1800. As it was only the first test, I connected it with a flexible rubber gasket that could be tilted and seen in live mode on the screen.
see the picture below
sorry for belated answer
Leo
Thank you for your answer, I might try this one day with my Lunt12mm too!


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