Horse-chestnuts, Ultraviolet Reveals Not Much Really.

YouVIart

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Here, not much to see.
Ultraviolet is invisible to humans, lucky humans.

Horse-chestnut,UV.to.RGB.transposed,M-43.FORUM-22,9,2021.jpg
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doady

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Why do birds see in ultraviolet? Maybe that is a question to ponder when doing ultraviolet photography. Do birds eat horsechestnuts? Where do birds usually find them?
 

YouVIart

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RGB version, even a feeble human can see this range of wavelengths.
Horse-chestnut,RGB,M-43.FORUM-22,9,2021.jpg
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YouVIart

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Why do birds see in ultraviolet? Maybe that is a question to ponder when doing ultraviolet photography. Do birds eat horsechestnuts? Where do birds usually find them?
Ultraviolet adds a sheen to the horse-chestnut, much easier for birds to see.
Horse-chestnut,UVsheen.on.RGB-22,9,2021.jpg
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YouVIart

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Horse-chestnut,IR1000nm-B&W.M-43.FORUM(small)22-25,9,2021.JPG
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Oh, just remembered, black & white. This time, Infrared.
 

YouVIart

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Updated birds eye view, truer picture of what a bird would see, UVA & RGB.
ChestNut,Bird-See,RGB.&.UVA,M-43.FORUM.22-26,9,2021.jpg
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A little birdy told me, I'm bound to say that.
 

YouVIart

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Easier to compare, maybe too violet?
ChestnutBirdsee.&.Humansee,RGB.&.UVA+RGB,M-43.FORUM-22-26,9,2021.jpg
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