Bidens ferulifolia: Colorful reflected UV ultraviolet photography III

Today, as has been previously shown,  some more recent results with a bit more colorful images using various UV lights and filtering, when shooting in reflected UV light. I was using my "work horse" UV filter, the Baader-U filter and my CERCO quartz fluorite lens. Light source was an UV enhanced Xenon flash, except otherwise mentioned. Target was one of my last Bidens ferulifolia flowers, as the first snow has already been here...

[click on image to see a larger one]

visible light image:
 

"standard" UV image using Baader-U filter:
 

pure 365nm UV LED:
 

UG11 + IR blocking filter:
 

XBV2 filter:
 

XBV4 filter:
 

XNUV (highspeed UV) filter:
 

IR filter >750nm:
 

Now this is "artsy" playing with light, but it still documents very well the prominent UV pattern this flower has. HERE is the same flower in 3D Stereo representation.


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

Lichen: human vision vs simulated bee vison; reflected UV ultraviolet photography II

Today again about that same Lichen (most likely Xanthoria parietina and Physcia adscendens grown into each other), that I found growing on a broken branch. Shots in UV were done using an older approx 85mm quartz/fluorite lens, the UV Baader-U and XNUV filter, the bee vision simulating XB2 and XB4 filter as well as a UG11 + S8612 (cladded, 2mm) filter stack. My modified Xenon flash was used as a light source.

[click on image to see a larger one]

Human vision image using UV/IR Cut filter:


Bee vision image using XBV3 filter:


Bee vision image using XBV2 filter:


UV image using XNUV filter:


UV image using Baader-U filter:


 UV image using UG11 + S8612 (cladded, 2mm) filter stack:


Quite interesting to note that also this old quartz / fluorite lens nicely reproduces, how Lichen reflects UV light in these differently colored sub-UV bands I have written earlier about. Really nice to have that target for UV photography when flowers will be gone...

HERE it is shot using my CERCO 94mm quartz/fluorite lens and HERE in UV induced visible fluorescence..

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

Zinnias: human vision vs simulated bee vison; reflected UV ultraviolet photography

Bought a few Zinnias today from my friend Christian Mayer, a very creative florist here in Weinheim, Germany. I'll show this bouquet of various Zinnias in multispectral representation. These shots were taken using inside using my Xenon high power flower flash in normal human vision VIS, in UV using the Baader-U and Jupiter-U filter, as well as in simulated bee vision using my XBV2, XBV3, XBV4 and XBV6 filters respectively as well as the new XNUV filter.

[click on image to see a larger one]

Visual image using a BG40 filter:


Simulated bee vision using XBV3 filter:


Simulated bee vision using XBV2 filter


Simulated bee vision using XBV4 filter:


Simulated bee vision using XNUV filter :


 Simulated bee vision using XBV6 filter :


UV using Baader-U filter:


UV using Jupiter-U filter:


IR (basically) using a simple ND filter:


Unfortunately these bread Zinnias don't show that prominent deep UV patterns as the mexican Zinnia haagena do ... oh well, not all what artificial breedings does leads to pleasant results.


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

Rudbeckia triloba: human vision vs simulated bee vison; reflected UV ultraviolet photography

Today about a Rudbeckia triloba in its multispectral representation, shot in Herrmanshof Park, Weinheim, Germany. I took the shots on a very windy and cloudy day using sunlight in normal human vision VIS, in UV using the Baader-U filter, as well as in simulated bee vision using my XBV2, XBV6 and XNUV filters respectively.

[click on image to see a larger one]

Visual shot:


Simulated bee vision using XBV2 filter:


Simulated bee vision using XBV6 filter:


Simulated bee vision using XNUV filter:


UV using Baader-U filter:


And here a polyptych of them all:


The new filtering technique makes the very prominent UV reflectance of the petals clearly 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

Achromatic Quartz Fluorite Lens: Ultraviolet Photography and Simulated Bee Vision

Well, I had taken apart some older equipment a while ago and have extracted the quartz fluorite optics that was hidden in it. I now have added some focusing helicoid, as well as I had some front and rear adapters made to mount it. Results of using it I had shown here and here and today will even show a few more results using it. A yellow Gazania flower in its last stages served as a model for some multispectral shots, all at approx f8-f11.

[click on image to see a larger one]

Visible light shot:


Simulated bee vision using XBV3 filter :


Simulated bee vision using XBV2 filter:


Simulated bee vision using XBV6 filter:


UV using Baader-U filter:


It only has a quite small focus shift of about 1/2mm when shooting macro, but that could have been expected from a well corrected quartz fluorite lens.


UV transmittance is also quite good, as was expected from a quartz-fluorite lens and stays rather flat even beyond 300nm.

More about that used quartz fluorite lens is  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

Gazania hybride: human vision vs simulated bee vison; reflected UV ultraviolet photography III

Today about a creamy white Gazania, that when it just opens up, has some yellowish petal color that gets lost after a day. Here shown in its multispectral representation. I took some outside shots using sunlight in normal human vision VIS, in UV using the Baader-U and Jupiter-U filter, as well as in simulated bee vision using my XBV2, XBV3 and XBV6 filters respectively.

[click on image to see a larger one]

Visual shot:


Simulated bee vision using XBV3 filter:


Simulated bee vision using XBV2 filter:


Simulated bee vision using XBV6 filter:


UV using Baader-U filter:


UV using Jupiter-U filter:


And here a polyptych of them all:


Quite interesting how this new filtering technique makes the very different UV reflectance of the petals 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

Bidens: human vision vs simulated bee vison II

Today about a Bidens ferulifolia flower, one of my fav UV "models" shot outside using sunlight. Shots were done in normal human vision, in UV using the Baader-U filter as well as in simulated bee vision using my various XBV filters respectively, that simulate insect / bee vision in just one shot.

[click on image to see a larger one]

Visual shot:


Simulated bee vison using XBV3 filter:


Simulated bee vison using XBV2 filter:


Simulated bee vison using XBV6 filter:


UV using Baader-U filter:


This flower has a very prominent UV pattern (365nm peak) on its UV-bright petal tips, that's why I like it as a standard test target a lot.


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

Gazania yellow hybride: human vision vs simulated bee vison; reflected UV ultraviolet photography

Today about a yellow Gazania flower I had posted about it studio shots before, so here again it is in multispectral representation. I took some shots outside in normal human vision VIS, in UV using the Baader-U, as well as in simulated bee vision using my XBV2, XBV3 and the XBV6 filters respectively using sunlight.

[click on image to see a larger one]

Visual shot:


Simulated bee vision using XBV3 filter:


Simulated bee vision using XBV2 filter:


Simulated bee vision using XBV6 filter:


UV using Baader-U filter:


Quite interesting how this new filtering technique makes the very different reflectance of the petal visible. A bit different than the Xenon flash shots as it was evening sunlight though.


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