Tuesday, July 28, 2015

European Magpie - Pica pica in reflected ultraviolet photography

Today shots of quite pretty feathers of an European Magpie - Pica pica in reflected ultraviolet photography using my "work horse" UV filter, the Baader-U filter, a longer wave UV. Lens was my UV-Nikkor 105mm quartz flourite lens. Light source was a modified for high UV output Xenon flashlight. All shots were done at f8.

[click on image to see a larger one]

Triptych (left to right): Human vison, reflected UV (longer wave), reflected UV (Baader-U filter):


Diptych (left to right): closeup Human vison, reflected UV(Baader-U filter):


Triptych (left to right): Human vison polarization 0 degrees, rotated 45 degrees, 90 degrees:


This attractive bird has iridescent feathers with a metallic green and blue shine maximized under a 45 degree reflection angle, however it also reflects UV quite well peaking at around 365nm (left) and to some lesser amount 385nm (right), invisible to us humans, and all this gets nicely visible.

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

Sunday, July 26, 2015

Snakeshead - Arum maculatum in reflected ultraviolet photography and simulated bee vision

Today shots of the very decorative late summer berries of the Snakeshead - Arum maculatum in reflected ultraviolet photography using my "work horse" UV filter, the Baader-U filter, as well as in simulated bee vision using my proprietary XBV filter. Lens was my UV-Nikkor 105mm quartz flourite lens. Light source was sunlight. All shots were done at f8.

[click on image to see a larger one]

Triptych (left to right): Human vison, reflected UV, simulated bee vision:


This attractive berries shows no prominent UV pattern, but a metallic like shine, peaking at around 365nm, invisible to us humans, and all this gets nicely visible.

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

Missouri Coneflower - Rudbeckia missouriensis in reflected ultraviolet photography, simulated butterfly and bee vision III

Today more shots of a group of decorative summer flowers Missouri Coneflower - Rudbeckia missouriensis in reflected ultraviolet photography using my "work horse" UV filter, the Baader-U filter, as well as in simulated butterfly and bee vision using my proprietary XBV filter. Lens was my UV-Nikkor 105mm quartz flourite lens. Light source was sunlight. All shots were done at f8.

[click on image to see a larger one]

Triptych (left to right): Human vison, reflected UV, simulated bee vision:


Triptych (left to right): Human vison, simulated butterfly vision, simulated bee vision:
 

This attractive flower shows its very prominent UV bullseye pattern, its petals have an UV dark bottom and very UV bright tips (around 365nm), invisible to us humans, and all this gets nicely visible in this group shot.

I have written about this flower previously HERE
 
Stay tuned, more will follow on that fascinating subject...

Missouri Coneflower - Rudbeckia missouriensis in reflected ultraviolet photography, simulated butterfly and bee vision II

Today shots of a decorative summer flower Missouri Coneflower - Rudbeckia missouriensis in reflected ultraviolet photography using my "work horse" UV filter, the Baader-U filter, as well as in simulated butterfly and bee vision using my proprietary XBV filter. Lens was my UV-Nikkor 105mm quartz flourite lens. Light source was sunlight. All shots were done at f8.

[click on image to see a larger one]

Triptych (left to right): Human vison, reflected UV, simulated bee vision:


Triptych (left to right): Human vison, simulated butterfly vision, simulated bee vision:
 

This attractive flower shows its very prominent UV bullseye pattern, its petals have an UV dark bottom and very UV bright tips (around 365nm), invisible to us humans, and all this gets nicely visible.


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

Orange coneflower - Rudbeckia fulgida in reflected ultraviolet photography, simulated butterfly and bee vision XII

Today shots of a decorative summer flower Orange coneflower - Rudbeckia fulgida in reflected ultraviolet photography using my "work horse" UV filter, the Baader-U filter, as well as in simulated butterfly and bee vision using my proprietary XBV filter. Lens was my UV-Nikkor 105mm quartz flourite lens. Light source was sunlight. All shots were done at f8.

[click on image to see a larger one]

Triptych (left to right): Human vison, reflected UV, simulated bee vision:


Triptych (left to right): Human vison, simulated butterfly vision, simulated bee vision:
 

This attractive flower shows its very prominent UV bullseye pattern, its petals have an UV dark bottom and very UV bright tips (around 365nm), invisible to us humans, and all this gets nicely visible.

I have previously written about this flower HERE

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

Wednesday, July 22, 2015

Orange coneflower - Rudbeckia fulgida in reflected ultraviolet photography, simulated butterfly and bee vision XI

Today shots of two species of a decorative summer flower Orange coneflower - Rudbeckia fulgida in reflected ultraviolet photography using my "work horse" UV filter, the Baader-U filter, as well as in simulated butterfly and bee vision using my proprietary XBV filters. Lens was my ZEISS 62mm quartz flourite lens. Light source was sunlight. All shots were done at about f5.6.

[click on image to see a larger one]

Triptych (left to right): Human vison, reflected UV, simulated bee vision:
 
 

This attractive flower shows its very prominent UV bullseye pattern, its petals have an UV dark bottom and very UV bright tips (around 365nm), invisible to us humans, and all this gets nicely visible.

I have previously written about this flower HERE

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

Day Lilly - Hemerocallis lilioasphodelus in reflected ultraviolet photography and simulated bee vision III

Today shots of an attractive summer flower, a creamy yellow Day Lilly - Hemerocallis lilioasphodelus in reflected ultraviolet photography using my "work horse" UV filter, the Baader-U filter as well as in simulated bee vision using my proprietary XBV filter. Lens was my ZEISS 62mm quartz flourite lens. Light source was sunlight. All shots were done at about f5.6.

[click on image to see a larger one]

Triptych (left to right): Human vison, reflected UV, simulated bee vision:


Most Hemerocallis have a very prominent "dark throat" UV pattern, and that gets nicely visible here, also in simulated bee vision.

I have previously written about that flower HERE
 
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