Tuesday, June 19, 2012

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

Today I discovered some flowering Rudbeckias. So this is R. hirta and wanted to show this one in its multispectral respresentation. So I took some shots in normal human vision VIS, in UV using the Baader-U, Jupiter-U and the new Saturn-U (300-350nm) filter, as well as in simulated bee vision using my XBV2, XBV3 and the new, stricter XBV5 filters respectively.

[click on image to see a larger one]

Visual shot:

Simulated butterfly vison using XBV3 filter:

Simulated butterfly vison using XBV2 filter:

Simulated bee vison using XBV5 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:

And here a polyptych of a few of those images:

As you may have noticed, I'm still working on my bee vision (BV) filters; BV5 is a very strict one that cuts all longer than short wave green.

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