I have worked a bit more on that XBV filter and have an XBV2 filter now also, which gives a more neutral representation.
[click on image to see a larger one]
For comparison the "bee vision" filter XBV as before:
an the more neutral XBV2 filter:
More info on this very interesting field may be found on my site http://www.pbase.com/kds315/uv_photos
