Canditate for 3rd order bow (4.8.2018, Vesanto/Finland)

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Timo Kuhmonen
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Registriert: 2. Mär 2007, 22:10
Wohnort: Espoo, Finland
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Canditate for 3rd order bow (4.8.2018, Vesanto/Finland)

Beitrag von Timo Kuhmonen » 23. Sep 2018, 19:19

Here is my first attempt to capture... I took these images some time ago, now are finally processed.
The lens I used was Tokina 12-24/f4 (Nikon D200), at 12mm focal length. Images are not cropped, sun is behind & in the middle of flagpole at bottom right corner.
https://timokuhmonen.smugmug.com/Nature ... /i-7tgPTzF
https://timokuhmonen.smugmug.com/Nature ... /i-GRFGTWS
https://timokuhmonen.smugmug.com/Nature ... /i-jLJpJzv

I converted the original image to lab-color mode. Then took "a" (green–red component) and "b" -channel (blue–yellow component) to process at Photoshop. These two channels contain only color info of original image, luminance I have discarded.

I could see a bit difference in the processed images (the radius of darker arc). I guess this indicates of different radius of different colors in rainbow. There might be also several other ways to enhance images, this one I usually take. I do not see any indication of 4th order bow...
Timo K, OH7HMS - KP32EV
http://tiku-astro.blogspot.com/

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Elmar Schmidt
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Registriert: 23. Feb 2010, 20:43
Wohnort: Bad Schönborn (8o39'51"O 49o13'21"N 130 m ü.N.N.)

Re: Canditate for 3rd order bow (4.8.2018, Vesanto/Finland)

Beitrag von Elmar Schmidt » 23. Sep 2018, 19:38

Yeah Timo,

you did it!

Congrats, Elmar

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Michael Großmann
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Registriert: 26. Sep 2011, 19:44
Wohnort: Kämpfelbach 48,931°N, 8,6292° O
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Re: Canditate for 3rd order bow (4.8.2018, Vesanto/Finland)

Beitrag von Michael Großmann » 26. Sep 2018, 19:27

Congrats Timo....and welcome:)

Regards, Micha

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