[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 very specific UV pattern, its petals form a UV dark bullseye pattern, invisible to us humans and the flower center is quite UV dark, and all this gets nicely visible.
Stay tuned, more will follow on that fascinating subject...