Autumn crocus - Colchicum autumnale in reflected ultraviolet photography and simulated bee vision

Today shots of a decorative flower, Autumn crocus - Colchicum autumnale 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:  


Colchicum flowers have no specific UV pattern, reflect hardly any UV, but still are able to see them in blue and green, and this gets nicely visible.


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