Friday, June 8, 2018

Hortensia flower - Hydrangea macrophylla in reflected ultraviolet photography and simulated bee and butterfly vision II

Today more shots of a Hortensia flower - Hydrangea macrophylla in reflected ultraviolet photography and simulated bee and butterfly vision. All shots were done at f8 in reflected ultraviolet photography using my "work horse" UV filter, the Baader-U filter, as well as my XBV filters for simulated bee and butterfly vision. Lens was a UV-Nikkor 105mm quartz fluorite lens. Light source was sunlight.

[click on image to see a larger one]

Human vision:
 

Reflected UV:
 

Simulated bee vision:
 

Simulated butterfly vision:
 

Quadriptych of human vision, UV, simulated butterfly and bee vision (left to right, top to bottom):
 

Hyrangea flowers has little UV reflection, just long wave around 380nm and all this gets nicely visible here, also in simulated bee and butterfly vision.

I have written about that flower before 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

Hortensia flower - Hydrangea macrophylla in reflected ultraviolet photography and simulated bee and butterfly vision

Today shots of a Hortensia flower - Hydrangea macrophylla in reflected ultraviolet photography and simulated bee and butterfly vision. All shots were done at f8 in reflected ultraviolet photography using my "work horse" UV filter, the Baader-U filter, as well as my XBV filters for simulated bee and butterfly vision. Lens was a UV-Nikkor 105mm quartz fluorite lens. Light source was sunlight.

[click on image to see a larger one]

Human vision:
 

Reflected UV:
 

Simulated bee vision:
 

Simulated butterfly vision:
 

Quadriptych of human vision, UV, simulated butterfly and bee vision (left to right, top to bottom):
 

Hyrangea flowers has little UV reflection, just long wave around 380nm and all this gets nicely visible here, also in simulated bee and butterfly vision.
 
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, May 7, 2018

Treasury flower - Gazania rigens in reflected ultraviolet photography and simulated bee and butterfly vision XXIV

Today studio shots of that new type, long blooming flower, an all yellow filled Gazania flower with small red dots at its petals inner end, a variant of a Treasury flower - Gazania rigens shot in reflected ultraviolet photography and simulated bee and butterfly vision. All shots were done at f11 in reflected ultraviolet photography using my "work horse" UV filter, the Baader-U filter, as well as my XBV filters for simulated bee and butterfly vision. Lens was a UV-Nikkor 105mm quartz fluorite lens. Light source was a modified Xenon flash.

[click on image to see a larger one]

Human vision:
 

Reflected UV:
 

Simulated bee vision:
 

Simulated butterfly vision:
 

Quadriptych of human vision, UV, simulated butterfly and bee vision (left to right, top to bottom):
 

This Gazania's outer petals reflect UV around 365nm, whereas the inner parts are quite darker, hence forming UV nectar guides for UV seeing insects. There are also highly UV reflecting marks inside around a dark UV center, all invisible to us humans but clearly visible to bees and butterflies, and all this gets nicely visible here, also in simulated bee and butterfly vision.

I have written about this Gazania previously 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

Saturday, May 5, 2018

Treasury flower - Gazania rigens in reflected ultraviolet photography and simulated bee vision XXIII

Today shots of another new type, long blooming flower, an all yellow with small red dots at its petals inner end variant of a Treasury flower - Gazania rigens in reflected ultraviolet photography and simulated bee vision. All shots were done at f8 in reflected ultraviolet photography using my "work horse" UV filter, the Baader-U filter, as well as my XBV filters for simulated bee vision. Lens was a UV-Nikkor 105mm quartz fluorite lens. Light source was sunlight.

[click on image to see a larger one]

Human vision:
 

Reflected UV:
 

Simulated bee vision:
 

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

This Gazania's outer petals reflect UV around 365nm, wheras the inner parts are quite darker hence forming UV nectar guides for bees. There are also highly UV reflecting marks inside around a dark UV center, all invisible to us humans but clearly visible to bees, and all this gets nicely visible here, also in simulated bee vision.

I have written about this Gazania previously 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

Treasury flower - Gazania rigens in reflected ultraviolet photography and simulated bee vision XXII

Today shots of a new type, long blooming flower, a red-yellowish variant of a Treasury flower - Gazania rigens in reflected ultraviolet photography and simulated bee vision. All shots were done at f8 in reflected ultraviolet photography using my "work horse" UV filter, the Baader-U filter, as well as my XBV filters for simulated bee vision. Lens was a UV-Nikkor 105mm quartz fluorite lens. Light source was sunlight.

[click on image to see a larger one]

Human vision:
 

Reflected UV:
 

Simulated bee vision:
 

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

This Gazania's outer petals reflect strongly UV around 372nm, wheras the inner parts are quite darker hence forming UV nectar guides for bees. There are also highly UV reflecting marks inside around a dark UV center, all invisible to us humans but clearly visible to bees, and all this gets nicely visible here, also in simulated bee vision.

I have written about this Gazania previously 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

Wednesday, April 11, 2018

Dwarf Tulip - Tulipa pulchella violacea in reflected ultraviolet photography, simulated bee and butterfly vision IV

Today about an early spring flower, I have written about before HERE, a Dwarf Tulip (Tulipa pulchella violacea) 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 UV-Nikkor 105mm quartz fluorite lens. Light source was sunlight. All shots were done at f8.

[click on image to see a larger one]

Human Vision:

UV vision:

Simulated Bee vision:

Simulated Butterfly vision:

Quadriptych in human vision, UV, and simulated butterfly and bee vision (left to right, top to bottom):
 

This dwarf tulip has an unusual pattern, its center is not UV bright, the inside petals reflect UV somewhat, but the bottom of the petals only in simulated bee and butterfly vision show an otherwise invisble pattern and all this gets quite nicely visible. First time ever that insects see more in the visible light part of the spectrum, than we do!

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

Tuesday, April 10, 2018

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

Today more about that common 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. Just another specimen. 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:
 

Simulated bee vision:
 

Simulated butterfly vision:
 

Quadriptych of human vision, UV, and simulated butterfly and bee vision (left to right, top to bottom:
 

Also this different specimen of 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 also in simulated bee and butterfly vision.

I have written 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