Marsh marigold - Caltha palustris flower in reflected UV ultraviolet photography and simulated bee and butterfly vision IV

Today shots of a spring flower I have written about before, Marsh marigold (Caltha palustris) in reflected ultraviolet photography using my "work horse" UV filter, the Baader-U filter as well as my XBV filters for simulating bee and butterfly vision. Lens was a UV-Nikkor 105mm quartz fluorite lens. Light source was sunlight. All shots were done at f8.

[click on image to see a larger one]


Visible light image:
 

UV image using Baader-U filter:
 

Simulated butterfly vision (UV - VIS) using XBV3 filter:
 

Simulated bee vision (UV - VIS) using XBV6 filter:
 

Quadriptych human vision, UV, sim. butterfly vision, sim. bee vision (left to right, top to bottom):
 

This Caltha flower has quite a prominent UV pattern, its center is UV dark, as well as some UV dark veins on its petals. The bee vision image additionally reveals some lit up anthers 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

Minnesota Landscape Arboretum 2016 exhibit about bee vision

The Minnesota Landscape Arboretum  a part of the University of Minnsesota will open an exhibit in 2016 which will include a showcase about bee vision. Some of my Marsh marigold - Caltha palustris images will be used for this purpose, as these clearly demonstrate the difference between human and bee vision.

[click on image to see a larger one]

Triptych of human vision, reflected UV and simulated bee vision (left to right)
 

This Caltha flower has quite a prominent UV pattern: its center is UV dark, and has some UV dark veins on its petals and all this gets quite nicely visible.

I have written about this flower and how this was photographed 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

Marsh marigold - Caltha palustris flower in reflected UV ultraviolet photography and simulated bee vision III

Today shots of a spring flower I have written about before, Marsh marigold (Caltha palustris) in reflected ultraviolet photography using my "work horse" UV filter, the Baader-U filter as well as my XBV filters 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 Caltha flower has quite a prominent UV pattern, its center is UV dark, as well as some UV dark veins on its petals. The bee vision image additionally reveals some lit up anthers 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

Marsh marigold - Caltha palustris flower in reflected UV ultraviolet photography and simulated bee vision II

Today close-ups about another early spring flower I have written about before, Marsh marigold (Caltha palustris) in reflected ultraviolet photography using my "work horse" UV filter, the Baader-U filter as well as my XBV filters for simulating butterfly and 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:
 

Simulated bee vision (UV - VIS) using XBV5 filter:
 

Quadriptych of the above:
 


This Caltha flower has quite a prominent UV pattern, its center is UV dark, as well as some UV dark veins on its petals and this gets quite nicely visible.

More about this 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

Marsh marigold - Caltha palustris flower in reflected UV ultraviolet photography and simulated bee vision

Today about another early spring flower, Marsh marigold (Caltha palustris) in reflected ultraviolet photography using my "work horse" UV filter, the Baader-U filter as well as my XBV filters for simulating butterfly and 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 Caltha flower has quite a prominent UV pattern, its center is UV dark, as well as some UV dark veins on its petals and this gets quite nicely visible.

Close-ups may be seen 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