Saturday, March 1, 2014

Winter Jasmine - Jasminum nudiflorum using X80QF for deep UV reflected ultraviolet photography

Today deep UV shots of that decorative winter flower Winter Jasmine - Jasminum nudiflorum in reflected ultraviolet using Baader-U filter as well as several UV only transmitting narrowband filters. Lens used was my X80QF f3.2 / 80mm quartz flourite lens. Light source was a modified Xenon flash. All shots were done at f11.

[click on image to see a larger one]

Visible light image:  

UV image using Baader-U filter (approx. 320-395nm, effective peak approx. 375nm):  

UV image using Jupiter-U filter (approx. 280-385nm, effective peak approx. 365nm):  

UV image using Saturn-U filter (approx. 300-350nm, effective peak approx. 325nm):  

UV image using Uranus-U filter (approx. 300-325nm, effective peak approx. 313nm):  

UV image using Neptun-U filter (approx. 290-330nm, effective peak approx. 310nm):  

Hexaptych of the above images:  

This attractive winter flower shows its very specific UV pattern, this time down to 300nm and beyond. Its center is UV dark, but its petals are strong UV reflective around 365nm, ie. UV bright, both invisible to us humans. The X80QF apo quartz fluorite lens makes all that nicely visible.

Stay tuned, more will follow on that fascinating subject...