[click on image to see a larger one]
Visible light image
UV image using Baader-U filter (approx. 320-395nm, effective peak approx. 375nm)
Diptych of the above:
This pretty blue Borage flower has no very specific UV pattern, its petals are UV dark on the middle and bottom, but its petal tips are quite UV bright around 380nm, and all this gets nicely visible.
Stay tuned, more will follow on that fascinating subject...