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

Today again more shots of a decorative flower, a Zinnia haageana - Mexican Zinnia in reflected ultraviolet photography using my "work horse" UV filter, the Baader-U and Jupiter-U filter as well as my XBV filters for simulating bee and butterfly vision. Lens was my CERCO 94mm quartz fluorite lens. Light source was 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):  

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

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

Quadriptych of the above:
 


Mexican Zinnia flowers have a very specific UV pattern, its petals are very UV dark on the middle and bottom, but its petal tips are very UV bright, reaching much deeper into UV as any other flower I know (<345nm), and all this gets nicely visible.


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 deep reflected ultraviolet photography at 300 - 315nm

Today again shots of a decorative flower, Zinnia haageana - Mexican Zinnia in reflected ultraviolet photography using my "work horse" UV filter, the Baader-U filter as well as a special very deep reaching 315nm UV filter. Lens was my CERCO 94mm quartz flourite lens. Light source was a high power Xenon flash. All shots were done at about f8.

[click on image to see a larger one]

All images are reflected UV images, using ; two different white baklancing methods were used.


Visible light image  

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

UV image using 300 - 315nm (peak 308nm) UV filter:  

Triptych of the above:
 


This Mexican Zinnia flower has a very specific UV pattern, its petals are very UV dark on the middle and bottom, but its petal tips are very UV bright, reaching much deeper into UV as any other flower I know (to 300nm), which the 300 - 315nm image clearly shows, reflecting UV in the greenish appearing region below 345nm, and in the yellow areas around 360nm and all this gets nicely visible.


I have written previously about these flowers HERE, also showing them in simulated butterfly + bee vision.

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

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

Today again shots of a decorative flower, a Zinnia haageana - Mexican Zinnia in reflected ultraviolet photography using my "work horse" UV filter, the Baader-U and Jupiter-U filter as well as my XBV filters for simulating bee and butterfly vision. Lens was a UV transmitting 50mm lens. Light source was 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):  

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

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

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

Hexaptych of the above:
 


Mexican Zinnia flowers have a very specific UV pattern, its petals are very UV dark on the middle and bottom, but its petal tips are very UV bright, reaching much deeper into UV as any other flower I know, and all this gets nicely visible.


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

Today shots of some decorative flowers, all Zinnia haageana - Mexican Zinnia in reflected ultraviolet photography using my "work horse" UV filter, the Baader-U filter. Lens was a UV transmitting 100mm lens. Light source was sun. All shots were done at about f11.

[click on image to see a larger one]

All images are reflected UV images, using Baader-U filter (approx. 320-395nm, effective peak approx. 375nm); two different white baklancing methods were used.


 
 

 
 

 
 

 
 

Hexaptych of some of the above:
 


These Mexican Zinnia flowers have a very specific UV pattern, its petals are very UV dark on the middle and bottom, but its petal tips are very UV bright, reaching much deeper into UV as any other flower I know, reflecting UV in the greenish appearing region below 345nm, and in the yellow areas around 360nm and all this gets nicely visible.


I have written previously about these flowers HERE, also showing them in simulated butterfly + bee 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

Treasury flower - Gazania rigens in deep reflected ultraviolet photography III

Today about the same Gazania flower Treasury flower - Gazania rigens in reflected ultraviolet photography using my "work horse" UV filter, the Baader-U filter, but this time comparing them to two other UV transmitting filters, a stack for longer wave UV using Schott UG1 and one for shorter using Schott UG11 plus as IR blocker Schott S8612 filter. But this time every image was individually white balanced. Lens used was the 94mm CERCO quartz fluorite lens. Light source was a modified for UV high power Xenon flash.

[click on image to see a larger one]

Visible light image using UV/IR cut filter:
 

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

UV image using a UG11 filter stack:
 

UV image using Jupiter-U filter:
 

UV image using a UG1 filter stack:
 


Interesting to notice, that those very different UV filters produce quite similar results, the deeper into UV reaching ones with finer details, the one rather on the long wave UV end, like the UG1 based filter stack shows less details and tints the image bluish, the latter most likely because of some blue leakage. Seemingly the UG11 + S8612 filter stack as well as the Jupiter-U filter produces quite similar detailled results than the Baader-U filter, but need more exposure and show some greenish overall hue. All that gets nicely visible.

I have written about that flower and those filters 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 deep reflected ultraviolet photography II

Today about the same Gazania flower Treasury flower - Gazania rigens in reflected ultraviolet photography using my "work horse" UV filter, the Baader-U filter, but this time comparing them to two other UV transmitting filters, a stack for longer wave UV using Schott UG1 and one for shorter using Schott UG11 plus as IR blocker Schott S8612 filter. Lens used was the 94mm CERCO quartz fluorite lens. Light source was a modified for UV high power Xenon flash.

[click on image to see a larger one]

Visible light image using UV/IR cut filter:
 

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

UV image using a UG1 filter stack:
 

UV image using a UG11 filter stack:
 


Interesting to notice, that those UV marks gets more or less visible using also those two filter stacks, however the shorter wave one has a clear edge over the longer wave one, revealing much finer details, and that all gets nicely visible.

There is a follow-up article about those filters, using individual white balance HERE.

I have written about that flower 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 deep reflected ultraviolet photography, simulated butterfly and bee vision

Today about a Gazania flower Treasury flower - Gazania rigens in reflected ultraviolet photography using my "work horse" UV filter, the Baader-U filter as well as my XBV filters for simulating bee and butterfly vision, but this time additionally also the Jupiter-U (280-385nm, eff. 365nm) and Saturn-U (300-350nm, eff. 325nm) filters. Lens used was the 94mm CERCO quartz fluorite lens. Light source was a modified for UV high power Xenon flash.

[click on image to see a larger one]

Visible light image using UV/IR cut 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):
 

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

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

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

Infrared light image using IR filter:
 

Polyptych of the above:
 


Interesting to notice, how the visible details change when the used wavelength gets shorter and the then appearance of unique colors. The outer petals reflect strongly UV around 370nm, there are also highly reflecting marks inside around a dark UV center and that all gets nicely visible.

There is a Part II about this same flower using filter stacks 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