Dandelion - Taraxacum officinale in deep reflected ultraviolet photography, simulated butterfly and bee vision

Today shots of a very well known flower I have written about before, Dandelion - Taraxacum officinale in reflected ultraviolet photography using my "work horse" UV filter, the Baader-U filter, my Jupiter-U and Saturn-U deeper UV filters, as well as my XBV filters for simulating butterfly and bee vision. Lens was a CERCO 94mm quartz fluorite lens. Light source was a Xenon flash. All shots were done at about f8.

[click on image to see a larger one]

Visible light image:
 

UV image using Baader-U filter (approx. 320-395nm, effective peak approx. 375nm):
 

UV image using Jupiter-U filter (approx. 280-385nm, effective peak approx. 365nm):
 

UV image using Saturn-U filter (approx. 300-350nm, effective peak approx. 325nm):
 

Simulated butterfly vision (UV - VIS) using XBV3 filter:
 

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

Quadriptych of the above (with bee/butterfly vision):
 

Quadriptych of the above (with deep UV):
 


A Dandelions outer petals reflect strongly UV around 365nm, there is a dark UV center and anthers, all invisible to us humans, and all that gets 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

Apache beggarticks - Bidens ferulifolia in deep reflected ultraviolet photography making plant deterioration visible - plant forensics

Today some details caught my attention on the petals of a well known spring flower I have written about before, Apache beggarticks - Bidens ferulifolia shot in reflected ultraviolet photography using my "work horse" UV filter, the Baader-U filter, my XBV filters for simulating butterfly and bee vision as well as my Jupiter-U and Saturn-U deeper reaching UV filters. Lens was a CERCO 94mm quartz fluorite lens. Light source was a Xenon flash. All shots were done at about f8.

It is about the fading UV bullseye pattern when a flower ages, which gets not only visible when using the bee and butterfly vision simulating filters but also when using deeper reaching UV transmitting filters, which btw. are:
- Baader-U filter (approx. 320-395nm, effective peak approx. 375nm)
- Jupiter-U filter (approx. 280-385nm, effective peak approx. 365nm)
- Saturn-U filter (approx. 300-350nm, effective peak approx. 325nm)

What gets visible, is that the naked human eye does not see anything in the visible image except some lighter colored petals, but already the Baader-U filtered image starts to reveal some fading of the UV bullsyeye pattern (also called UV nectar guide) in the bottom flower compared to the two fresher flowers above, which gets more prominently visible when using the Saturn-U filter and surprisingly best when using the Jupiter-U filter. I have noticed earlier in outdoor shots, that reflected UV imaging reveals plant and specifically flower detoriation much earlier than visible light image does. But let's have a look at the following "plant forensic" images....

[click on image to see a larger one]

Visible light image (400 - 700nm):
 

Simulated butterfly vision (UV - VIS) using XBV3 filter:
 

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

UV image using Baader-U filter (approx. 320-395nm, effective peak approx. 375nm):
 

UV image using Jupiter-U filter (approx. 280-385nm, effective peak approx. 365nm):
 

UV image using Saturn-U filter (approx. 300-350nm, effective peak approx. 325nm):
 

Quadriptych of the above with sim. animal vision:
 

Quadriptych of the above with deep UV:
 

Quadriptych of the above with sim. animal vision in detail:
 

Quadriptych of the above with deep UV in detail:
 

Bidens has a prominent UV pattern, its petal tips are UV bright around 365nm, its center is quite UV dark. Here now it gets visible how this UV pattern fades away (lighter petails shifting towards 370nm reflection and quite ligter center i.e. much less contrasting overall appearance) when the flower ages (bottom flower) and this gets nicely visible 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 deep reflected ultraviolet photography making blemishes and deterioration visible - plant forensics

Today some details caught my attention on the petals of a long lasting flower I have written about before, Treasury flower - Gazania rigens in reflected ultraviolet photography using my "work horse" UV filter, the Baader-U filter, my Jupiter-U and Saturn-U deeper reaching UV filters. Lens was a CERCO 94mm quartz fluorite lens. Light source was a Xenon flash. All shots were done at about f8.

It is about blemishes which gets visible, the deeper reaching the used UV transmitting filters are. Remember, mine are:
- Baader-U filter (approx. 320-395nm, effective peak approx. 375nm)
- Jupiter-U filter (approx. 280-385nm, effective peak approx. 365nm)
- Saturn-U filter (approx. 300-350nm, effective peak approx. 325nm)

What gets visible, is that the naked human eye does not see anything in the visible image, but already the Baader-U filtered image starts to reveal some dots on the petals, which get more prominently visible when using the Jupiter-U filter and best when using the Saturn-U filter. I have noticed earlier in outdoor shots, that reflected UV imaging reveals plant and specifically flower infections and detoriation much earlier than visible light images. But let's have a look at the following "plant forensic" images....

[click on image to see a larger one]

Visible light image (400 - 700nm):
 

UV image using Baader-U filter (approx. 320-395nm, effective peak approx. 375nm):
 

UV image using Jupiter-U filter (approx. 280-385nm, effective peak approx. 365nm):
 

UV image using Saturn-U filter (approx. 300-350nm, effective peak approx. 325nm):
 

Quadriptych of the above:
 

And now in more detail two quadriptychs:
 

 


This Gazania's outer petals reflect strongly UV around 365nm, all invisible to us humans, and the blemishes caused by an infection or deterioration (needs to be studied) get nicely visible in deeper reflected "plant forensics" UV photography.

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 deep reflected ultraviolet photography, simulated butterfly and bee vision IX

Today shots developed from RAW files of another long lasting flower I have written about before, Treasury flower - Gazania rigens in reflected ultraviolet photography using my "work horse" UV filter, the Baader-U filter, my Jupiter-U and Saturn-U deeper UV filters, as well as my XBV filters for simulating butterfly and bee vision. Lens was a CERCO 94mm quartz fluorite lens. Light source was a Xenon flash. All shots were done at about f8.

[click on image to see a larger one]

Visible light image:
 

UV image using Baader-U filter (approx. 320-395nm, effective peak approx. 375nm):
 

UV image using Jupiter-U filter (approx. 280-385nm, effective peak approx. 365nm):
 

UV image using Saturn-U filter (approx. 300-350nm, effective peak approx. 325nm):
 

Simulated butterfly vision (UV - VIS) using XBV3 filter:
 

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

Quadriptych of the above (with bee/butterfly vision):
 

Quadriptych of the above (with deep UV):
 


Also this Gazania's outer petals reflect strongly UV around 365nm, all invisible to us humans, and there are also highly UV reflecting marks inside around a dark UV center and all that gets even nicelier visible developed from RAW files.

The images developed from jpg are 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 deep reflected ultraviolet photography, simulated butterfly and bee vision VIII

Today shots developed from RAW files of a long lasting flower I have written about before, Treasury flower - Gazania rigens in reflected ultraviolet photography using my "work horse" UV filter, the Baader-U filter, my Jupiter-U and Saturn-U deeper UV filters, as well as my XBV filters for simulating butterfly and bee vision. Lens was a CERCO 94mm quartz fluorite lens. Light source was a Xenon flash. All shots were done at about f8.

[click on image to see a larger one]

Visible light image:
 

UV image using Baader-U filter (approx. 320-395nm, effective peak approx. 375nm):
 

UV image using Jupiter-U filter (approx. 280-385nm, effective peak approx. 365nm):
 

UV image using Saturn-U filter (approx. 300-350nm, effective peak approx. 325nm):
 

Simulated butterfly vision (UV - VIS) using XBV3 filter:
 

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

Quadriptych of the above (with bee/butterfly vision):
 

Quadriptych of the above (with deep UV):
 


This Gazania's outer petals reflect strongly UV around 365nm, all invisible to us humans, and there are also highly reflecting marks inside around a dark UV center. Strangely enough the longitudinal strips disappear and all that gets even nicer visible when developed from RAW files.

The images developed from jpg files are 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 deep reflected ultraviolet photography, simulated butterfly and bee vision VII

Today shots of another long lasting flower I have written about before, Treasury flower - Gazania rigens in reflected ultraviolet photography using my "work horse" UV filter, the Baader-U filter, my Jupiter-U and Saturn-U deeper UV filters, as well as my XBV filters for simulating butterfly and bee vision. Lens was a CERCO 94mm quartz fluorite lens. Light source was a Xenon flash. All shots were done at about f8.

[click on image to see a larger one]

Visible light image:
 

UV image using Baader-U filter (approx. 320-395nm, effective peak approx. 375nm):
 

UV image using Jupiter-U filter (approx. 280-385nm, effective peak approx. 365nm):
 

UV image using Saturn-U filter (approx. 300-350nm, effective peak approx. 325nm):
 

Simulated butterfly vision (UV - VIS) using XBV3 filter:
 

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

Quadriptych of the above (with bee/butterfly vision):
 

Quadriptych of the above (with deep UV):
 


Also this Gazania's outer petals reflect strongly UV around 365nm, all invisible to us humans, and there are also highly UV reflecting marks inside around a dark UV center and all that gets nicely visible.

The images developed from RAW files are 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 deep reflected ultraviolet photography, simulated butterfly and bee vision VI

Today shots of a long lasting flower I have written about before, Treasury flower - Gazania rigens in reflected ultraviolet photography using my "work horse" UV filter, the Baader-U filter, my Jupiter-U and Saturn-U deeper UV filters, as well as my XBV filters for simulating butterfly and bee vision. Lens was a CERCO 94mm quartz fluorite lens. Light source was a Xenon flash. All shots were done at about f8.

[click on image to see a larger one]

Visible light image:
 

UV image using Baader-U filter (approx. 320-395nm, effective peak approx. 375nm):
 

UV image using Jupiter-U filter (approx. 280-385nm, effective peak approx. 365nm):
 

UV image using Saturn-U filter (approx. 300-350nm, effective peak approx. 325nm):
 

Simulated butterfly vision (UV - VIS) using XBV3 filter:
 

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

Quadriptych of the above (with bee/butterfly vision):
 

Quadriptych of the above (with deep UV):
 


This Gazania's outer petals reflect strongly UV around 365nm, all invisible to us humans, and there are also highly reflecting marks inside around a dark UV center. Strangely enough the longitudinal strips disappear and all that gets nicely visible.

The images developed from RAW files are 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