Showing posts with label Heliomeris multiflora. Show all posts
Showing posts with label Heliomeris multiflora. Show all posts

Friday, September 6, 2013

Showy Goldeneye - Heliomeris multiflora in reflected ultraviolet photography and simulated bee vision II

Today more shots of a flower, Showy Goldeneye - Heliomeris multiflora in reflected ultraviolet photography using my "work horse" UV filter, the Baader-U filter as well as in simulated bee vision using my XBV6 filter. Lens was my CERCO 94mm quartz flourite lens. Light source was sunlight. All shots were done at about f5.6.

[click on image to see a larger one]

Visible light image  

UV image using Baader-U filter (approx. 320-395nm, effective peak approx. 375nm):  

Simulated bee vision image using experimental XBV filter:  

Triptych of the above images:  


This flower also here shows a specific UV pattern, its petals are very UV bright (around 365nm) to about the middle and its center is UV dark, additionally aging spots of this older flower can bee seen, and all this gets nicely visible.

I have previously written about that flower HERE.

Stay tuned, more will follow on that fascinating subject...

Monday, July 2, 2012

Viguiera multiflora (Showy Goldeneye): human vision vs simulated bee vison; reflected UV ultraviolet photography

Here about Viguiera multiflora (syn. Heliomeris multifl.), the "Showy Goldeneye" in its multispectral representation. I took some shots at Hermannshof, Weinheim, Germany in normal human vision VIS, in UV using the Baader-U filter, as well as in simulated bee vision using my XBV2 and new XBV6 filters respectively.

[click on image to see a larger one]

Visual shot:


Simulated bee vison using XBV2 filter:


Simulated bee vison using XBV6 filter:


UV using Baader-U filter:


VIS-UV-BV quadriptych:


This pretty flower, pretty common to the south-west of the US shows a very intense, Rudbeckia-like bullseye pattern with a petal tip reflection around 365nm.

As you may have noticed, I'm still working on my bee vision (BV) filters; BV6 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