Today more about that piece of bark with Lichen growing on it (most likely Xanthoria parietina and Physcia adscendens grown into each other), that I found blown over onto my balcony. Closeup shots in reflected UV, visible light and simulated insect vision were done using my UV-Nikkor 105mm quartz/fluorite lens as well as another quartz-fluorite lens reversed as a multispectral diopter. Filters used were the UV Baader-U filter and my usual XBV filters. My modified Xenon flash was used as a light source.
[click on image to see a larger one]
Human vision image using UV/IR Cut filter:
Reflected UV image:
Simulated Butterfly vision image:
Simulated Bee vision image:
Quadriptych VIS, UV, BV. BU:
So this Lichen bark in closeup was a quick experiment, quite some room for improvement of course, possibly using stacking in future for more DOF.