Jerusalem artichoke - Helianthus tuberosus in reflected ultraviolet photography and simulated bee vision

Today shots of an attractive flower, Jerusalem artichoke - Helianthus tuberosus in reflected ultraviolet photography using my "work horse" UV filter, the Baader-U filter as well as in simulated bee vision using my XBV6 filter. Lens was my CERCO 94mm quartz flourite 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 image using experimental XBV filter:  

Triptych of the above images:  


This attractive flower has a specific UV pattern, its petals are UV dark inside, but UV bright on the outside and the flower center is also quite UV dark, both invisible to us humans, forming an UV bullseye pattern and all this gets nicely visible as well as the aging spots only visible in UV and BV.

I have previously written about that flower HERE

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

Flower meadow in reflected ultraviolet photography and simulated bee vision

Today shots of a flower meadow with, besides others,Orange coneflower - Rudbeckia fulgida var deamii, Helianthus spp. in reflected ultraviolet photography using my "work horse" UV filter, the Baader-U filter as well as in simulated bee vision using my XBV6 filter. Lens was my CERCO 94mm quartz flourite 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 image using experimental XBV filter:  

Triptych of the above images:  


This overview of a flower meadow shows, how some flowers have developed specific UV patterns to make them stand out of the crowd for insects, as their petals have a UV dark bullseye pattern invisible to us humans and the flower centers are quite UV dark, and all this gets nicely visible.


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

Three-leaved Coneflower - Rudbeckia triloba in reflected ultraviolet photography and simulated bee vision

Today shots of a decorative flower, Three-leaved Coneflower - Rudbeckia triloba in reflected ultraviolet photography using my "work horse" UV filter, the Baader-U filter as well as in simulated bee vision using my XBV6 filter (In the background are some R.fulgida I have previosly written about). Lens was my CERCO 94mm quartz flourite 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 image using experimental XBV filter:  

Triptych of the above images:  


This attractive flower has a specific UV pattern, its petals have a UV dark bullseye pattern invisible to us humans and the flower center is quite UV dark, and all this gets nicely visible.


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

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

Today shots of a decorative flower out of a flower meadow of the same type, Orange coneflower - Rudbeckia fulgida var deamii in reflected ultraviolet photography using my "work horse" UV filter, the Baader-U filter as well as in simulated bee vision using my XBV6 filter. Lens was my CERCO 94mm quartz flourite 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 image using experimental XBV filter:  

Triptych of the above images:  


This attractive flower has a specific UV pattern, its petals have a UV dark bullseye pattern invisible to us humans and the flower center is quite UV dark, and all this gets nicely visible.

There is more about that flower meadow HERE

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

Eryngium amethystinum in reflected ultraviolet photography and simulated bee vision

Today shots of a decorative flower of the Apiaceae family, Eryngium amethystinum in reflected ultraviolet photography using my "work horse" UV filter, the Baader-U filter. Lens was my CERCO 94mm quartz flourite 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 image using experimental XBV filter:  

Triptych of the above images:  


This pretty flower has a specific UV pattern, its little individual flower petals are UV bright around 385nm, whereas the flower center is quite UV dark, and all this gets nicely visible.


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

Daucus carota in reflected ultraviolet photography

Today shots of a decorative flower of the Apiaceae family, Wild Carrot - Daucus carota in reflected ultraviolet photography using my "work horse" UV filter, the Baader-U filter. Lens was my CERCO 94mm quartz flourite 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)  

Diptych of the above images:  


This pretty flower (inflorescence actually, consisting of many small flowers) has a specific UV pattern, its little individual flower petals are UV bright around 385nm, and all this gets nicely visible.

There is more about that flower HERE.

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

Mexican Zinnia - Zinnia haageana in reflected ultraviolet photography simulated bee and butterfly vision XIII

Today even more shots using that decorative flower, a Zinnia haageana - Mexican Zinnia in reflected ultraviolet photography using my "work horse" UV filter, the Baader-U and a UV/IR Cut filter for the visible light shots as well as my XBV filters for simulated bee and butterfly vision. Lens was my CERCO 94mm quartz flourite lens. Light source was Xenon flash. All shots were done at about f4.1 (fully open).

Since my readers are meanwhile used to the colors my different filters make, I leave it today to the reader to decode those. I'm using a special optical technique to achieve a gradient BG ....

[click on image to see a larger one]

 

 

 

 

 

 

 


Mexican Zinnia flowers have a very specific UV pattern as this last picture clearly shows (reflected UV using Baader-U filter). Their petals are very UV dark on the middle and bottom, but their petal tips are very UV bright, reaching much deeper into UV as any other flower I know (< 345nm), and some like this one here even shows different UV reflections on underside and upperside of their petals - and all this gets nicely visible in this presentation.

I have written previously about these flowers 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

Mexican Zinnia - Zinnia haageana in reflected ultraviolet photography simulated bee and butterfly vision XII

Today more shots using a different of those decorative flowers, a Zinnia haageana - Mexican Zinnia in reflected ultraviolet photography using my "work horse" UV filter, the Baader-U and a UV/IR Cut filter for the visible light shots as well as my XBV filters for simulated bee and butterfly vision. Lens was my CERCO 94mm quartz flourite lens. Light source was Xenon flash. All shots were done at about f4.1 (fully open).

Since my readers are meanwhile used to the colors my different filters make, I leave it today to the reader to decode those ....

[click on image to see a larger one]

 

 

 

 

 

 

 


Mexican Zinnia flowers have a very specific UV pattern as the 2nd picture clearly shows (reflected UV using Baader-U filter). Their petals are very UV dark on the middle and bottom, but their petal tips are very UV bright, reaching much deeper into UV as any other flower I know (< 345nm) - and all this gets nicely visible in this presentation.

I have written previously about these flowers 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