Tuesday, March 11, 2014

Spring Flowers 2014: Lesser Celandine - Ranunculus ficaria - 80mm Quartz Fluorite lens for reflected ultraviolet photography II

Here today in situ shots of the well known Lesser Celandine - Ranunculus ficaria early spring flower. Shots were done aside from visible photography in reflected ultraviolet using Baader-U filter and in simulated bee vision using my XBV6 filter. Lens used my X80QF f3.2 / 80mm Quartz Fluorite lens. Light source was sun. All shots were done at approx. f8.

[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 Lesser Celandine flower has a well known bulls-eye UV pattern, its center is UV dark, whereas its petals strongly reflect around 365nm. The X80QF quartz fluorite lens is reproducing this quite well and all that gets nicely visible.

I have written about this flower already HERE (studio shots).

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