White Gazania rigens flower: Baader-U filter for reflected UV ultraviolet photography

More about a white Gazania flower, most likely Gazania rigens. Shot in visible and ultraviolet light, using the Baader-U filter and a high power Xenon flash as well as an UV sensitive camera.

[click on image to see a larger one]

Visible light image:


Ultraviolet (UV) light image:


Diptych VIS - UV:


The petals of this white Gazania are quite special, since they show in UV an otherwise invisible bright rim (reflecting around 370nm) against a UV darker, but still reflective (around 385nm) inside. The stigmas are also very UV bright, whereas the stamen are quite dark so overall 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] 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