[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 overview of a flower meadow shows, how some flowers have developed specific UV patterns to make them stand out of the crowd for insects, as their petals have a UV dark bullseye pattern invisible to us humans and the flower centers are quite UV dark, and all this gets nicely visible.
Stay tuned, more will follow on that fascinating subject...