Tuesday, July 24, 2007

A multispectral example using Mexican Zinnia

Just a few quick shots today using the UV Rodagon 60mm for multispectral analysis in visual light, UV, UV fluorescence and IR. As usual I used a Nikon D70, SB-140 flash w. SW-5UV filter, UV Rodagon 60mm, Baader 2" U- and UV/IR Cut- filter (for UV and UV fluorescence), B+W 092 filter (for IR).

Target was a Mexican Zinna; the little flower head is about 12mm in diameter, i.e. magnification was about 0.5x which still is within the 
design range of that lens. Here now the visual shot:

The UV shot reveals that special pattern this flower shows:

UV fluorescence shows the intensive light of the pollen:

IR finally looks quite transparent:

Quite interesting how the very same flower appears in different wavebands!

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>