Friday, May 3, 2013

Greater Celandine - Chelidonium majus in reflected ultraviolet photography, simulated bee vision

Today shots of a spring flower, a Greater Celandine - Chelidonium majus 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:
 

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

Quadtriptych of some of the above:
 


This Chelidonium flower has a specific UV pattern, its petals are bright in UV around 365nm, but anthers and stamen are UV dark 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 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

Thursday, May 2, 2013

Creeping Cinquefoil - Potentilla reptans flower in reflected UV ultraviolet photography and simulated bee vision II

Today about another early spring flower which I have shown here before in close-up, Creeping Cinquefoil (Potentilla reptans) 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:
 

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

Quadriptych of the above:
 


This Potentilla flower has quite a prominent UV pattern, its center is UV dark and this gets quite nicely visible, even in this "meadown" overview shot.


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

False Strawberry - Waldsteinia geoides in reflected ultraviolet photography, simulated bee and butterfly vision

Today shots of a spring flower, a False Strawberry - Waldsteinia geoides 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:
 

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

Quadtriptych of some of the above:
 


This Waldsteinia flower has a specific UV pattern, its petals are bright in UV around 365nm, but anthers and stamen are UV dark 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

Wednesday, May 1, 2013

Bloodroot - Sanguinaria canadensis in reflected ultraviolet photography, simulated bee and butterfly vision

Today shots of a spring flower, a Bloodroot - Sanguinaria canadensis forma multiplex 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 some of the above:
 


This beautiful, but poisonous Bloodroot flower (a cultivar) has no specific UV pattern, but its petals are bright in long wave UV around 380nm, so 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

Monday, April 29, 2013

Apache beggarticks - Bidens ferulifolia in reflected ultraviolet photography, simulated bee and butterfly vision II

Today shots of a spring flower I have written about before, Apache beggarticks - Bidens ferulifolia 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 some of the above:
 


Bidens has a strong visible UV pattern, its petal tips are UV bright around 365nm, its center is quite UV dark, so 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

Mexican Creeping Zinnia - Sanvitalia procumbens in reflected ultraviolet photography, simulated bee and butterfly vision

Today shots of a spring flower, a Mexican Creeping Zinnia - Sanvitalia procumbens 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 XBV5 filter:
 

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

Quadtriptych of some of the above:
 


This Mexican Zinna has a strongly visible, deep into UV reaching pattern. Its petal tips are UV bright, its center is quite UV dark, so 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