Jerusalem artichoke - Helianthus tuberosus in reflected ultraviolet photography and simulated bee and butterfly vision

Today shots of a lesser known "UV-flower" Jerusalem artichoke - Helianthus tuberosus in reflected ultraviolet photography and simulated bee and butterfly vision. All shots were done at f5.6 in reflected ultraviolet photography using my "work horse" UV filter, the Baader-U filter, as well as my XBV filters for simulated bee and butterfly vision. Lens was a UV-Nikkor 105mm quartz fluorite lens. Light source was sunlight.

[click on image to see a larger one]

Human vision:
 

Reflected UV:
 

Simulated butterfly vision:
 

Simulated bee vision:
 

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

This attractive flower has a specific UV "bulls eye" pattern, its petals and its center are UV dark, the flower outer petals are UV bright (around 365nm), all invisible to us humans and all this gets nicely visible, also in simulated bee and butterfly vision.

I have written about that flower before 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

Jerusalem artichoke - Helianthus tuberosus in reflected ultraviolet photography and simulated bee vision II

Today shots of an attractive summer flower, Jerusalem artichoke - Helianthus tuberosus in reflected ultraviolet photography using my "work horse" UV filter, the Baader-U filter as well as in simulated bee vision using my proprietary XBV filter. Lens was my CERCO 94mm quartz flourite lens. Light source was sunlight. All shots were done at about f5.6.

[click on image to see a larger one]

Triptych (left to right): Human vision, reflected UV and simulated bee vision:  

This attractive flower has a specific UV "bulls eye" pattern, its petals and its center are UV dark, invisible to us humans and the flower outer petals are UV bright (around 365nm), and all this gets nicely visible, also in simulated bee vision.

I have previously written about that flower HERE

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

Jerusalem artichoke - Helianthus tuberosus in reflected ultraviolet photography and simulated bee vision

Today shots of an attractive flower, Jerusalem artichoke - Helianthus tuberosus in reflected ultraviolet photography using my "work horse" UV filter, the Baader-U filter as well as in simulated bee vision using my XBV6 filter. Lens was my CERCO 94mm quartz flourite lens. Light source was sunlight. All shots were done at about f5.6.

[click on image to see a larger one]

Visible light image  

UV image using Baader-U filter (approx. 320-395nm, effective peak approx. 375nm):  

Simulated bee vision image using experimental XBV filter:  

Triptych of the above images:  


This attractive flower has a specific UV pattern, its petals are UV dark inside, but UV bright on the outside and the flower center is also quite UV dark, both invisible to us humans, forming an UV bullseye pattern and all this gets nicely visible as well as the aging spots only visible in UV and BV.

I have previously written about that flower HERE

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