Lichen: human vision vs UV induced visible fluorescence vison and reflected UV ultraviolet photography II

Today more about that piece of bark with Lichen growing on it (most likely Xanthoria parietina and Physcia adscendens grown into each other), that I found blown over onto my balcony. Closeup shots in reflected UV, visible light and simulated insect vision were done using my UV-Nikkor 105mm quartz/fluorite lens as well as another quartz-fluorite lens reversed as a multispectral diopter. Filters used were the UV Baader-U filter and my usual XBV filters. 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:


Reflected UV image:


Simulated Butterfly vision image:


Simulated Bee vision image:


Quadriptych VIS, UV,  BV. BU:



So this Lichen bark in closeup was a quick experiment, quite some room for improvement of course, possibly using stacking in future for more DOF.

I have written more about that 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

Lichen: human vision vs UV induced visible fluorescence vison and reflected UV ultraviolet photography

Today about a piece of bark with Lichen growing on it (most likely Xanthoria parietina and Physcia adscendens grown into each other), that I found blown over onto my balcony. Shots in reflected UV and UV stimulated visible fluorescence (UVIVF) were done using my UV-Nikkor 105mm quartz/fluorite lens. Filters used were the UV Baader-U filter and a 420nm sharp cut Longpass filter. A high power filtered Nichia 365nm UV LED was used as a light source. Different colors of the UVIVF images by using different white balance settings.

[click on image to see a larger one]

Human vision image using UV/IR Cut filter:


UV image using Baader-U filter:


Bee vision image using XBV filter:


UVIVF image:


UVIVF image:


UVIVF image:


UVIVF image:


UVIVF image:



Quadriptych: VIS, UV, UVIVF*2 (different whitebalance) image:


UVIVF is commonly what people imagine when they read or hear about "UV photography" - here you see the difference to reflected UV photography. UVIVF has gotten very common, as it is so much easier to do and no special lens is needed, as just visible light is recorded. 

I have written more about that 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

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