Showing posts sorted by relevance for query Lichen. Sort by date Show all posts
Showing posts sorted by relevance for query Lichen. Sort by date Show all posts

Monday, January 30, 2012

[UV] Lichen in reflected ultraviolet light III

Today more about Lichen shots in visible and ultraviolet light, especially how damaged or dead lichen look like.

[click on image to see a larger one]

These UV images here also uses my standardized false UV color normal + high intensity palette:



Damaged/dead Lichen

Fungus overgrown:

VIS:



UV:


Dead Lichen (bottom of picture):

VIS:



UV:


So it gets clear, that the UV image reveals living lichen, by its UV reflection, in the case of these species here at around 380nm.

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

Sunday, February 23, 2014

Lichen - 80mm Quartz Fluorite lens for reflected ultraviolet photography

Well, today a few shots of some unidentified lichen I found today growing on an old oak tree Lichen. Shots were done aside from visible photography in reflected ultraviolet using Baader-U filter, and just out of curiosity, in simulated bee vision using my XBV6 filter. Lens used was an older f3.2 / 80mm Quartz Fluorite lens. Light source was sun. All shots were done at approx. 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):  

Simulated bee vision image using experimental XBV filter:  


It is quite interesting to see how these two different lichen types look so very similar to us humans, but seen in ultraviolet light, they appear very different (so they do to bees)! Before I have noticed (Link below), that this UV reflection might be an indicator for alive lichen. This older quartz fluorite lens is reproducing this quite well and all that gets nicely visible.

I have written about Lichen before HERE.

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

Monday, January 30, 2012

[UV] Lichen in reflected ultraviolet light II

Today more about Lichen shots in visible and ultraviolet light.

[click on image to see a larger one]

These UV images here also uses my standardized false UV color normal + high intensity palette:



Lichen growing on a brownstone rock

VIS:



UV:


UV - different filtering:


Here this lichen specimen reflects UV at around 380nm. Interesting to note, how much details these UV shots reveals!

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

Wednesday, January 25, 2012

[UV] Lichen in reflected ultraviolet light

Today about Lichen shots in visible and ultraviolet light.

[click on image to see a larger one]

These UV images here also uses my standardized false UV color normal + high intensity palette:



Lichen on oak tree

VIS:



UV:


Lichen on another tree

VIS:



UV:


Interesting to note, how much details these UV shots reveals!

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

Wednesday, September 26, 2012

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

Today about some 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 my CERCO 94mm quartz/fluorite lens, the UV Baader-U and bee vision XB4 filter as well as a modified Xenon flash was used as light source.

[click on image to see a larger one]

Human vision image using UV/IR Cut filter:

Bee vision image using XBV4 filter:

UV image using Baader-U filter

Quite interesting, how Lichen reflects UV light in these differently colored sub-UV bands I have written earlier about. Nice to know a target for UV photography when flowers will be gone soon...

HERE it is in UV induced visible 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

Friday, October 9, 2020

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

Friday, September 28, 2012

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

Thursday, September 27, 2012

Lichen: UV induced visible fluorescence and reflected UV; ultraviolet photography

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 that I have shown in reflected UV and UV induced visible fluorescence. So here a quadriptych of VIS-FL-UV images, just for viewing pleasure and of course also for comparison.

[click on image to see a larger one]

Quadriptych VIS-FL-UV:

Well, it seems that a little broken branch laying in the mud, can have quite some hidden and invisible beauty, that was just waiting to be revealed...

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

Wednesday, September 26, 2012

Lichen: UV induced visible fluorescence; UV ultraviolet photography

Today again about that same Lichen I have reported about (most likely Xanthoria parietina and Physcia adscendens grown into each other), that I found growing on a broken branch. Shots now were done in UV induced visible fluorescence (UVIVF) using my CERCO 94mm quartz/fluorite lens, the Baader UV/IR Cut filter as well as my Nichia high power UV LED system that was used as a light source.

[click on image to see a larger one]

Human vision image using UV/IR Cut filter:

UVIVF image using a special UV Cut filter:

UVIVF image using Baader UV/IR Cut filter:

Quite interesting colors get visible. So also that is nice to know as a target for UV photography when all flowers will be gone soon...


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

Sunday, September 13, 2020

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

Saturday, November 22, 2025

A forthcoming publication about synthetic Lichens

Today about a forthcoming publication using the following pictures of that same Lichen I have reported about (most likely Xanthoria parietina and Physcia adscendens grown into each other), that I found growing on a broken branch. Shots were done in UV induced visible fluorescence (UVIVF) using my CERCO 94mm quartz/fluorite lens, the Baader UV/IR Cut filter and another special longer wave cut filter as well as my Nichia high power UV LED system that was used as a light source.

[click on image to see a larger one]

Human vision image using UV/IR Cut filter:

UVIVF image using a special UV Cut filter:

UVIVF image using Baader UV/IR Cut filter:

Quite interesting colors get visible, hence why my images will be used in a publication about "synthetic lichens".


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