Rudbeckia hirta: human vision vs simulated bee vison; reflected UV ultraviolet photography IV

Today as I have shown before again R. hirta in its multispectral representation. I took some shots in normal human vision VIS, in UV using the Baader-U, the all proprietary Jupiter-U and the new Saturn-U (300-350nm) filter, as well as in simulated bee and butterfly vision using my XBV2, XBV3 and the new, stricter XBV6 filter respectively.

[click on image to see a larger one]

Visual shot - human vision:


Simulated butterfly vision using XBV3 filter:


Simulated butterfly vision using XBV2 filter:


Simulated bee vision using XBV6 filter:


UV using Baader-U filter:


UV using Jupiter-U filter:


UV using Saturn-U (300-350nm) filter:


IR (basically) as it was shot using only a ND filter:


Rudbeckia and also this R. hrsta have a very prominent, otherwise invisible "bullseye pattern" which gets nicely visible in UV (around 360nm) and BV. Since leafs (petals were leafs one) reflect from 700-750nm onwards, that pattern is also invisible in IR.

As you may have noticed, I'm still working on my bee vision (BV) filters; BV6 now is one with very intensive colors and much shorter exposure time, due to new filter glass combinations.

More about these special new filters here later in a seperate entry.


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

Sanvitalia procumbens (Creeping Zinnia): human vision vs simulated bee vison; reflected UV ultraviolet photography II

Today again about Sanvitalia procumbens ("Creeping Zinnia"). So here it is in its multispectral representation with a focus on simulated bee vision; before I had shown it with a focus on UV using the Baader-U and Jupiter U filters. I took some shots in normal human vision VIS, in UV using the Baader-U filter, as well as in simulated bee vision using my XBV2 and XBV5 filter respectively.

[click on image to see a larger one]

Visual shot:


Simulated bee vison using XBV2 filter:


Simulated bee vison using XBV5 filter:


UV using Baader-U filter:


This flower has a prominent UV reflection (around 360nm) of its petals and is one of my "standard UV targets"

As you may have noticed, I'm still working on my bee vision (BV) filters; here again it shows, how well they are able to reproduce the UV patterns together with teh visible parts a bee is able to see.

More about these special new filters here later in a seperate entry.


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