Today about a white clematis flower shot in UV using a Baader U (320-390nm) and a special Bee Vision filter, that allows to map UV as blue into an image so as to simulate what bees can see (UV, Blue, Green). Shot was done using a Cerco 94mm quartz fluorite lens.
[click on image to see a larger one]
Visual light shot (VIS):
Ultraviolet light (Baader U filter, 320-390nm):
Simulated Bee Vision (special filter, UV->Blue, Green, Red):
Triptych of those images above:
Note the dark center in the ultraviolet shot which is pertained also in the simulated bee (insect) vision shot.
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