Thursday, April 25, 2013

Dandelion - Taraxacum officinale flower in reflected UV ultraviolet photography and simulated bee vision

Today about another early spring flower, Dandelion - Taraxacum officinale 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 Dandelion flower has quite a prominent UV pattern, its petals are UV bright around 365nm, its center is UV dark, especially the anthers, and 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

Rock tulip - Tulipa saxatilis in reflected ultraviolet photography, simulated bee and butterfly vision II

Today some close-ups of an early spring flower I have written about before, a Rock tulip - (Tulipa saxatilis "Lilac Wonder") (often wrongly labeled T. bakeri) 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 butterfly vision (UV - VIS) using XBV3 filter:
 

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

Quadtriptych of the above:
 


This rock tulip has a not so strongly visible UV pattern, its petals are UV bright, and this gets quite nicely visible in these close-ups.


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

Rock tulip - Tulipa saxatilis in reflected ultraviolet photography, simulated bee and butterfly vision

Today also about an early spring flower, a Rock tulip - (Tulipa saxatilis "Lilac Wonder") (often wrongly labeled T. bakeri) 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 butterfly vision (UV - VIS) using XBV3 filter:
 

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

Quadtriptych of the above:
 


This rock tulip has a not so strongly visible UV pattern, its petals are UV bright, and 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

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