Ca K double stack images with TOA 150 - April 22

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christian viladrich
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Ca K double stack images with TOA 150 - April 22

Post by christian viladrich »

Hi,
Here are two images taken in Ca K on April, 22 and the Taka TOA150 :

Full-disk image with ASI 1600:
http://astrosurf.com/viladrich/astro/so ... a-Barr.jpg

AR2816 with ASI 290 :
http://astrosurf.com/viladrich/astro/so ... ASI290.jpg

Clear skies !


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Re: Ca K double stack images with TOA 150 - April 22

Post by marktownley »

These are excellent Christian! What sharpening routine do you use? Unsharp mask or Lucy Richardson deconvolution?


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Re: Ca K double stack images with TOA 150 - April 22

Post by EGRAY_OBSERVATORY »

Absolutely excellent Christian and thanks for sharing

Terry


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Re: Ca K double stack images with TOA 150 - April 22

Post by christian viladrich »

Thanks Mark and Terry !
Mark, my processing flow is very simple. It is the same for Ca K, Ha or white light HR images. I use AstroArt, but it can be done with any other software
- unsharp masking : sigma = 1.4 pixels and coefficent 8,
- very small amount of RL deconvolution : sigma = 1.1 pixels (gaussien), 2 iterations,
- adjustments of min/max levels as need in Photoshop,
- no gamma change (except on prominence Ha images).

For FD images, I only use unsharp masking since contrast is very strong due to sampling:
- unsharp masking : sigma = 1.4 pixels and coefficent 6.

Hope this helps.


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Re: Ca K double stack images with TOA 150 - April 22

Post by sulcis2000 »

A pleasure for my eyes!


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Re: Ca K double stack images with TOA 150 - April 22

Post by MapleRidge »

Fabulous images Christian :bow

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Re: Ca K double stack images with TOA 150 - April 22

Post by p_zetner »

Another fabulous Ca set, Christian.
It's always a pleasure to view these.
Cheers.
Peter


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