[UV] How flowers stand out in UV - ultraviolet HDTV video

Today more about UV videos, here a video shot at Hermannshof Park, Weinheim, Germany. It shows how flower found a way during evolution to really makes them stand out in UV.

This video here also uses my Standardized false UV color normal + high intensity palette:



UV video:

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, VIS] Rudbeckia fulgida meets Zeiss UV-Planar 60mm

Shots from our wonderful Hermanshof Park here in Weinheim, of a Rudbeckia fulgida variant shot, using a Zeiss UV-Planar 4/60mm lens and Baader-U filter for the UV shot.

[click on image to see a larger one]

fully open at f4:

stopped down to f5.6:

Here now UV-VIS differentials on the right side.

fully open at f4:

stopped down to f5.6:

This lens is so sharp, already fully open, so stopping down is only needed to control the DOF (depth of field).


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

[VIS, UV] Late Summer's "Grand Finale" - Zeiss UV-Planar 60mm

Today summer came back and flashed his intensive golden rays over our wonderful Hermanshof Park here in Weinheim, so I grabbed my system and took a few shots. Without more ado, have a look in VIS and UV...

[click on image to see a larger one]

[the yellow flower is Helianthus tuberosus and the violet flower is an Aster type]


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] Do flowers have an ultraviolet aura?

Today something artistic, hence the rhetoric title question. So for your hopefully viewing pleasure without any technical or scientific ado, here my images...

[click on image to see a larger one]

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] Mirabilis jalapa in reflected ultraviolet

Today about a very interesting flower, Mirabilis jalapa. This flower, also called "four-a-clock" uses a very special technique to enhance the visibility to its pollinators, in that case hawkmoths, that are active when the light gets dimmer, i.e. in the late afternoon and evening hours (hence that name). I have presented that here on my BLOG already. Here now how this flower looks like in reflected UV to other insects, able to see UV.

[click on image to see a larger one]

Reflected UV image (320 - 390nm):

Reflected UV image (mainly at 333nm):

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

Mirabilis jalapa UV induced fluorescent pollen

Today about a very interesting flower, Mirabilis jalapa. This flower, also called "four-a-clock" uses a very special technique to enhance the visibility to its pollinators, in that case hawkmoths, that are active when the light gets dimmer, i.e. in the late afternoon and evening hours (hence that name). Scientists have found out, that the pollen of this flower is highly fluorescent i.e. ultraviolet light, which is proportionally more present in early morning and later afternoon hours, is "used" and downconverted to visible light (i.e. fluorescence light) according to Stokes Law. So this down converted light overlays the visible light present and so enhances the visibility to its pollinators. The yellow parts of the flower petals also exhibit green fluorescence, but to lesser extent and in green light. Now let's see how that looks like...

[click on image to see a larger one]

Left: visible image; right: UV induced visible light pollen image:

It gets strikingly visible, how intense this effect actually is!

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] Clivia miniata flower through a quartz soft focus lens

Here again a shot of a Clivia miniata flower as shown in a previous entry here. But this time it is not about technical aspects, but how special such a soft focus shot in reflected ultraviolet light looks like.

[click on image to see a larger one]

Here a true soft focus lens was used, which gets easily visible for the trained eye. Unfortunately an art style which has gotten somewhat lost. But a few still hold on to that slow form of photography to bring out the "light from within"...

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