[UV] Cinquefoil or Potentilla flower: Baader-U vs Jupiter-U filter for reflected UV ultraviolet photography

Again more about that new Jupiter-U filter of mine. Also those shots were taken at the wonderfully blossoming Hermannshof, Weinheim, Germany. This time it is about a yellow Potentilla flower.

[click on image to see a larger one]

All triptychs are presented VIS left, Baader-U middle, Jupiter-U right:



Potentilla has a very strong UV reflection around 365nm, so much that it actually overpowers all around.

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

[UV] bog-bean flower Menyanthes trifoliata: Baader-U vs Jupiter-U filter for reflected UV ultraviolet photography

Again more about that new Jupiter-U filter of mine. Also those shots were taken at the wonderfully blossoming Hermannshof Park, Weinheim, Germany. This time it is about a white marshland bog-bean flower Menyanthes trifoliata.

[click on image to see a larger one]

All triptychs are presented VIS left, Baader-U middle, Jupiter-U right:



It is UV reflective but quite long wave and does so around 385nm.

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

[UV] Bidens flower: Baader-U vs Jupiter-U filter for reflected UV ultraviolet photography

Again more about that new Jupiter-U filter of mine. This time it is about a Bidens ferulifolia flower.

[click on image to see a larger one]

All triptychs are presented VIS left, Baader-U middle, Jupiter-U right:



The separating greenish ring between the UV bright tip and the UV dark petal part captured my attention and needs further research.

Bidens is one of my "standard" UV photography targets, as it has a very prominent bright UV petal tip reflection:



It peaks quite prominently around 365nm which my spectral reflection measurement clearly has proven.


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

[UV] Gazania flower: Baader-U vs Jupiter-U filter for reflected UV ultraviolet photography

Again more about that new Jupiter-U filter of mine. This time it is about a yellow Gazania flower, most likely Gazania rigens.

[click on image to see a larger one]

All triptychs are presented VIS left, Baader-U middle, Jupiter-U right:



Center detail (different shots):


and even more detail:


Here the difference between the results of these two UV filters is not great, since the main UV reflection is around 365nm, which both filters transmit equally well. The petal tips and bottoms, as well as the stamens in the center reflect UV quite strongly around 365nm and create quite distinct UV nectar guides for their pollinators.

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

[UV] Iris flower: Baader-U vs Jupiter-U filter for reflected UV ultraviolet photography

Again more about that new Jupiter-U filter of mine. Also those shots were taken today at the wonderfully blossoming Hermannshof, Weinheim, Germany. This time it is about a yellow Iris pseudacorus.

[click on image to see a larger one]

All triptychs are presented VIS left, Baader-U middle, Jupiter-U right:



A quite surprising find, since Iris' are usually not much UV reflective. This one however does quite strongly around 365nm.

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

[UV] Dianthus flower: 340nm Jupiter-U vs Baader-U for reflected UV ultraviolet photography

Again more about that new Jupiter-U filter of mine. Also those shots were taken today at the wonderfully blossoming Hermannshof, Weinheim, Germany. This is about Dianthus ("Coronation") and its specific UV reflectance.

[click on image to see a larger one]

All triptychs are presented VIS left, Baader-U middle, Jupiter-U right:

Dianthus plumarius ("Carnation"):


another Dianthus type:


Overview, again different ones:


The Jupiter-U filter reveals quite a bit more details than the longer wave Baader-U filter obviously.

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

[UV] Crab Spider on Geranium flower: Baader-U vs Jupiter-U filter for reflected UV ultraviolet photography

Again more about that new Jupiter-U filter of mine. Also those shots were taken today at the wonderfully blossoming Hermannshof, Weinheim, Germany. This time it is not only about flowers, also about an insect, a crab spider in that case.

[click on image to see a larger one]

Triptych: VIS left, UV using Baader-U filter middle, UV using Jupiter-U filter right:



Quite interesting how dark that spider looks like in UV on that flower. I would assume it uses its dark UV pattern to even enhance the attraction of that flower to its pollinators, hence directing its prey right to it!

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