Saturday, May 9, 2015

Star-of-Bethlehem - Ornithogalum umbellatum in reflected ultraviolet photography and simulated bee vision

Today shots of an early spring flower, Star-of-Bethlehem - Ornithogalum umbellatum. in reflected ultraviolet photography and simulated bee vision. All shots were done at about f5.6 in reflected ultraviolet photography using my "work horse" UV filter, the Baader-U filter, as well as my XBV6 filter for simulated bee vision. Lens was a CERCO 94mm quartz fluorite lens. Light source was sunlight.

[click on image to see a larger one]

Triptych of human vision, UV and simulated bee vision (left to right):

This Star-of-Bethlehem flower has a less prominent UV pattern, its petals however are very UV bright around 370nm, its center is a bit darker in UV and shows a shifted reflection to about 380nm and all this gets nicely visible, also in simulated bee vision.

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

More info on this very interesting field may be found on my site