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Rainbow leads to My House.


Rainbow leads to My House.
Photo Information
Copyright: Randy Lafferty (cherokeechief) Silver Star Critiquer/Silver Workshop Editor/Gold Note Writer [C: 22 W: 16 N: 68] (397)
Genre: Places
Medium: Color
Date Taken: 2006-05-15
Categories: Nature
Camera: Sony Cybershot DSC-P52
Exposure: f/5.6, 1/250 seconds
More Photo Info: [view]
Photo Version: Original Version
Date Submitted: 2006-05-16 4:24
Viewed: 299
Points: 4
[Note Guidelines] Photographer's Note
Taken last night.
In this shot we can see:
The "Primary bow" is closest to tree, between the primary and the tree we see "Supernumeraries" and we can see "Alexander's Dark Band."

Dark band.

The sky between the primary and secondary bows is noticeably darker than elsewhere.

Alexander of Aphrodisias first described the effect in 200 AD and it now carries his name.

Light rays undergoing a single reflection in raindrops form the primary rainbow or brighten the sky inside it.

Rays reflected twice are deviated to form the secondary bow or brighten the sky outside.

Raindrops along lines of sight between the two bows cannot send light to your eye and so the sky is darker there.


Look slightly inside a bright primary bow and sometimes you will see one or more predominantly green, pink and purple fringes. Their numbers and spacing can change from minute to minute. They are often spaced more widely near the top of the bow.

These "supernumerary bows" are an intimation of the limitations of geometric optics for it is totally unable to explain them.

Contrast upped a tad, sized and cropped, frame added in Photoshop.
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Critiques [Translate]

Beautiful! I never can seem to get a good one of rainbows or lightning. Of course the rainbows "pose" better though!...This is a fantastic capture.

randy,
great composition of the rainbow(S)!
good framing , especially with the tree within the frame. a very well composed shot.

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