Monday, July 4, 2011

[UV, VIS] Zinnia - more on short wave UV reflection

I was shooting Zinnias today, when I saw one which sported that greenish short wave UV-A sub band reflection as mentioned here before..

[click on images to see larger ones]

Standardized reflected false UV "colors" according to the previously described "UV color palette" related to wavelength.

The normal and high intensity palette:



The reflected UV image shows that this Zinnia flower variant has a greenish / yellowish short wave UV-A reflection in the 340-360nm range:


VIS shot for comparison:



Stay tuned, more will follow on that fascinating subject...

More info on this very interesting field may be found on my site http://www.pbase.com/kds315/uv_photos

[UV, VIS] Zinnia flower competing

I was shooting Zinnias today, when I saw one flowering aside another bright yellow flower. I noticed the Zinnias being frequently visited by bees and bumblebees, whereas the similar looking yellow one had only few guests.

[click on images to see larger ones]

Standardized reflected false UV "colors" according to the previously described "UV color palette" related to wavelength.

The normal and high intensity palette:



Well, the reflected UV image shows clearly how that Zinnia flowers wins the "competition":


Even covered by other plants it makes itself clearly seen (see blurry BG Zinnia). So not really "competition" for that UV-bright Zinnia (340-360nm).


Stay tuned, more will follow on that fascinating subject...

More info on this very interesting field may be found on my site http://www.pbase.com/kds315/uv_photos