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 http://www.pbase.com/kds315/uv_photos