Current ARs from June 16 afternoon

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gabrieli
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Current ARs from June 16 afternoon

Post by gabrieli » Sat Jun 16, 2018 10:37 pm

These were taken using an Aries 265mm ERF + C9.25 + 3X Baader Telecentric + Quark Combo +FLIR (5Mp) Blackfly during mid afternoon (1 - 2 pm local)
Yes, the scale is a bit much and the images a bit noisy (due to stacking only 200/1000 frames) but I haven't found a suitable reducer yet to bring it down to about 4500 - 5000mm without adding too much overhang. The Quark was showing very good contrast but the seeing caused very jittery fine detail.

The camera feels more and more comfortable now and I found that by reducing the ROI to 3Mp (as for the images below), the frame rate could be nudged up to about 98 fr/s if the image brightness allows it.
601w.jpg
601w.jpg (1.41 MiB) Viewed 374 times
601winv.jpg
601winv.jpg (1.58 MiB) Viewed 374 times
741w.jpg
741w.jpg (1.19 MiB) Viewed 374 times
741winv.jpg
741winv.jpg (1.12 MiB) Viewed 374 times
Last edited by gabrieli on Sun Jun 17, 2018 12:35 pm, edited 2 times in total.

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eroel
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Re: Current ARs from June 16 afternoon

Post by eroel » Sat Jun 16, 2018 11:41 pm

Lou:
Very promising setup.
Best regards,
Eric.

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marktownley
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Re: Current ARs from June 16 afternoon

Post by marktownley » Sun Jun 17, 2018 8:14 pm

Very good indeed!
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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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Montana
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Re: Current ARs from June 16 afternoon

Post by Montana » Mon Jun 18, 2018 9:24 am

Very impressive!! :bow

I don't understand why it would be so noisy though after stacking 200 frames, I only ever stack 50 and they seem OK?

Alexandra

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Carbon60
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Re: Current ARs from June 16 afternoon

Post by Carbon60 » Mon Jun 18, 2018 4:43 pm

Hope you don't mind, but I've cleaned up some of the noise.....
601winv(2).jpg
601winv(2).jpg (368.96 KiB) Viewed 313 times
Not ideal as I worked from your JPG file, but it shows promise.

Stu.
Lunt LS60THa B1200 PTFT
150mm H-alpha Solar telescope with Lunt35 mod
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gabrieli
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Re: Current ARs from June 16 afternoon

Post by gabrieli » Mon Jun 18, 2018 5:45 pm

As Stu implied, the noise came from excessive processing (over use of wavelets). The scale displayed should have been reduced a bit,

Lou

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