Rudbeckia fulgida - Orange Coneflower opening in reflected UV ultraviolet photography

Today shots of a very decorative flower, a Rudbeckia fulgida - Orange Coneflower in reflected ultraviolet photography using my "work horse" UV filter, the Baader-U filter. Lens was a CERCO 94mm lens. Light source was sunlight. All shots were done at about f8.

[click on image to see a larger one]

Various stages of a Rudbeckia fulgida flower opening.

Visible light image using UV/IR Cut filter:  

UV image using Baader-U filter (approx. 320-395nm, peak approx. 350nm):  

Visible light image using UV/IR Cut filter:  

UV image using Baader-U filter (approx. 320-395nm, peak approx. 350nm):  

Visible light image using UV/IR Cut filter:  

UV image using Baader-U filter (approx. 320-395nm, peak approx. 350nm):  

Diptych form for better comparison:
 
 
 

Rudbeckia has a very prominent UV pattern, invisible to our human eye, UV bright petal tips reflecting around 365nm and quite UV dark middle / bottoms petals and flower center and all that gets nicely visible.


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