Sunday, June 26, 2022

Black-eyed Susan - Rudbeckia hirta in reflected ultraviolet photography and simulated bee and butterfly vision XVII

Today in 2022 shots of a beautiful flower, originating from the USA Prairie, a Black-eyed Susan - Rudbeckia hirta in reflected ultraviolet photography using my "work horse" UV filter, the Baader-U filter, as well as in simulated bee and butterfly vision using my XBV filters. All shots were done at f11. Lens was a UV-Nikkor 105mm quartz fluorite lens. Light source was a modified Xenon flash.

[click on image to see a larger one]

Human vision:
 

Reflected ultraviolet (UV):
 

Simulated butterfly vision:
 

Simulated bee vision:
 

Quadriptych of human vision, ultraviolet, simulated butterfly and bee vision (left to right, top to bottom):
 

This flower shows a very prominent UV bullseye pattern, as its petal tips are very UV bright (around 365nm) and its center is very UV dark, and all this gets nicely visible in 3D stereo, also in simulated bee and butterfly vision.

I have previously written about that flower 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

Monday, June 13, 2022

"Wandelmut" Exhibit at Museum Sinclair House, Bad Homburg

There is currently an exhibit in Germany at the Museum Sinclair-House, Bad Homburg within the "Wandelmut" (willingness to change) series, which has some of my multispectral works on display. Visible here is a Rudbeckia hirta flower in human vision, simulated bee and butterfly vision, showing the "landing platform" only bees and butterflies can see, as they have the ability to see ultraviolet light (300-400nm), which we humans cannot see.


(Human vision vs. simulated Bee + Butterfly vision; left to right) 

I have written about that Rudbeckia hirta flower HERE before,

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