Today again about that same Lichen (most likely Xanthoria parietina and Physcia adscendens grown into each other), that I found growing on a broken branch. Shots in UV were done using an older approx 85mm quartz/fluorite lens, the UV Baader-U and XNUV filter, the bee vision simulating XB2 and XB4 filter as well as a UG11 + S8612 (cladded, 2mm) filter stack. 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:
Bee vision image using XBV3 filter:
Bee vision image using XBV2 filter:
UV image using XNUV filter:
UV image using Baader-U filter:
UV image using UG11 + S8612 (cladded, 2mm) filter stack:
Quite interesting to note that also this old quartz / fluorite lens nicely reproduces, how Lichen reflects UV light in these differently colored sub-UV bands I have written earlier about. Really nice to have that target for UV photography when flowers will be gone...
HERE it is shot using my CERCO 94mm quartz/fluorite lens and HERE in UV induced visible fluorescence..
Stay tuned, more will follow on that fascinating subject...
More info on this very interesting field may be found on my site http://www.pbase.com/kds315/uv_photos