Today shots of Potentilla spring flower, but this time of a slightly different cultivar Spring cinquefoil - Potentilla neumanniana in reflected ultraviolet photography using my "work horse" UV filter, the Baader-U filter as well as my XBV filter for simulating bee vision. Lens was a CERCO 94mm quartz fluorite lens. Light source was sunlight. All shots were done at about f5.6.
[click on image to see a larger one]
Visible light image:
UV image using Baader-U filter (approx. 320-395nm, effective peak approx. 375nm):
Simulated bee vision (UV - VIS) using XBV6 filter:
Triptych of the above:
This Potentilla flower has quite a prominent UV pattern, its center is UV dark and the tips of its petals are UV bright (reflecting around 365nm) and all this gets quite nicely visible.
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