Sunday, December 16, 2018

Oncostele Wildcat 'Golden Red Star' in visible, reflected UV, simulated bee and butterfly vision

Today shots of an Orchid hybride, Oncostele Wildcat 'Golden Red Star' in reflected ultraviolet photography as well as simulated bee and butterfly vision using an UV-Nikkor f4.5/105mm lens. UV filter used was the Baader-U filter, my "work horse" filter for reflected UV as well as my proprietary XBV filters. All shots were done at f8. Light source used was a modified for high UV output Xenon flash.

[click on image to see a larger one]

Human Vision (VIS):

Reflected UV (Baader-U):

Reflected UV image at 340nm peak (IDAS UV372):

Simulated Butterfly Vision:

Simulated Bee Vision:

Quadriptych of VIS, UV, sim. Butterfly and Bee vision (left to right, top to bottom):

This orchid has a very specific UV pattern, its petals are very UV dark, but its lower petal lip has on the lower center a very UV bright spot as well as on its center "nose" formation an UV reflecting spot and all this gets nicely visible, also in simulated Bee and Butterfly vision.

I have written more about this orchid HERE

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

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