Thursday, May 14, 2015

Treasury flower - Gazania rigens in reflected ultraviolet photography and simulated bee and butterfly vision XIII

Today shots of a very liked, long blooming spring flower, an all yellow variant Treasury flower - Gazania rigens in reflected ultraviolet photography and simulated bee and butterfly 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 XBV filters for simulated bee and butterfly 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):
 

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

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

This Gazania's outer petals reflect strongly UV around 365nm, and there are also highly UV reflecting marks inside around a dark UV center, all invisible to us humans, and all this gets nicely visible, also in simulated bee and butterfly vision.

I have written about Gazania previously 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