Friday, April 22, 2016

Marsh marigold - Caltha palustris flower in reflected UV ultraviolet photography and simulated bee and butterfly vision IV

Today shots of a spring flower I have written about before, Marsh marigold (Caltha palustris) in reflected ultraviolet photography using my "work horse" UV filter, the Baader-U filter as well as my XBV filters for simulating bee and butterfly vision. Lens was a UV-Nikkor 105mm quartz fluorite lens. Light source was sunlight. All shots were done at f8.

[click on image to see a larger one]

Visible light image:

UV image using Baader-U filter:

Simulated butterfly vision (UV - VIS) using XBV3 filter:

Simulated bee vision (UV - VIS) using XBV6 filter:

Quadriptych human vision, UV, sim. butterfly vision, sim. bee vision (left to right, top to bottom):

This Caltha flower has quite a prominent UV pattern, its center is UV dark, as well as some UV dark veins on its petals. The bee vision image additionally reveals some lit up anthers and all this gets quite nicely visible.

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

More info on this very interesting field may be found on my site