Journal of Zoology October Cover Page

The British Journal of Zoology, founded 1830 in London, has chosen my photo as the cover of their October issue. 

[click on image to see a larger one]

(detail crop from total image, left visual image, right UV image - color matched)


It shows a bumblebee (bombus terrestris) on a Mexican Zinnia (Sanvitalia procumbens) flower in visible light (left part) and UV (right part).

At the same time they will publish our paper:

Stelzer, R. J., N. E. Raine, K. D. Schmitt and L. Chittka (2010). "Effects of aposematic colouration on predation risk in bumblebees? A comparison between differently coloured populations, with consideration of the ultraviolet." 


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

f1.0 Quartz Singlet Soft Focus Lens IV

More soft focus shots using my Quartz Singlet Lens f1.0, this time from the Lorraine region in France (Reims, Metz, Nancy).

[click on image for a larger one]









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

Desert Rose (Adenium obesum) in 3D and butterfly vs human vision

My Desert Rose (Adenium obesum) started to blossom, so here a few shots (crosseyed viewing)

[click on image to see a larger one]

3D Human Vision Image:

 

3D Butterfly Vision Image:


not much of an UV pattern to see though....

Well, I couldn't believe it, so I tested several possibilities and using some nearly monochromatic UV LED light, a UV pattern gets visible. The multspectral filtering BV overlaying three channels simply cannot make it visible (yet...). This is though the Baader U-filter + UV Rodagon 105mm.



Here now a comparison UV LED versus filtered Xenon flash both using Baader U filter (black and white images for better comparison).

UV LED : 


Xenon flash:


the monochromatic UV LED light reveals even more details of that UV pattern!


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

f1.0 Quartz Singlet Soft Focus Lens III

Quartz Singlet Lens f1.0 test shots showing the fine control possible of the degree of soft focus and glow around subjects.

[click on image for a larger one]




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