Palmengarten Frankfurt / Main Germany showing kids invisible to us bee and butterfly vision

Today about my works being used with my permission by the Palmengarten Botanical Garden Frankfurt/ Main Germany. Their idea was to show kindergarden kids how bees and butterflies see the world including their ability to see reflected ultraviolet (UV) light. 

They chose to use some attractive flower pictures of mine: Taraxacum and Gazania which were shot by me in reflected ultraviolet photography, 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 Xenon flash light.

[click on image to see a larger one]

Taraxcacum Human vision:
 

Taraxacum Bee Vision:
 

Taraxacum Butterfly Vision:
 

Gazania Human vision:
 

Gazania bee vision:
 

Gazania butterfly vision:
 

These flowers outer petals strongly reflect UV around 365nm, whereas the stamens are quite darker, hence forming UV nectar guides for UV seeing insects. This is all invisible to us humans, but clearly visible to bees and butterflies, and all this will be nicely visible to the kids and visitors at Palmengarten Botanical Garden Frankfurt/Main Germany

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 

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

Rare lenses on forthcoming auction incl. special lenses for UV (pt I)

I will auction off some (very) rare lenses at a forthcoming auction including special lenses for UV photography. Auction will start on: May 17, 2025 10:00 AM CET (Central European Summer Time)

Part I will be auctioned; see details here in that link to the mflenses site (I'm admin there):

List of rare Lenses on auction/viewtopic,p,1591664.html#1591664 

Part II will happen this autumn...

Texas State Park Authorities showing Rudbeckia hirta UV patterns at Lake Sommerville Park

Today about my works being used with my permission by the Texas State Park Authorities. Their idea is to show visitors how differently bees and butterflies see the world, including their ability to see reflected ultraviolet (UV) light in one of their state parks, the Lake Sommerville Park.

They chose to use an attractive yellow flower, a Rudbeckia hirta, which were shot by me in reflected ultraviolet photography, 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 a modified Xenon studio flash, modified for high UV output.

[click on image to see a larger one]

Human vision:
 

Reflected UV:
 

Simulated butterfly vision:
 

Simulated bee vision:
 

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

Rudbeckia hirta's outer petals strongly reflect UV around 365nm, whereas its center parts are quite darker, reflecting around 365nm, hence forming UV nectar guides for UV seeing insects. This is all invisible to us humans, but clearly visible to bees and butterflies, and all this will be nicely visible to the visitors at Lake Sommerville State Park, TX USA.

I have written 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 

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