Invisible Fluorescence

MitchellB

New member
At the middle of the 19th century British Scientist Sir George G. Stokes first discovered that Fluorspar ( a mineral) displays a bright pigment when lit by Ultraviolet light. The word Fluorescence was born.
In short when Atoms take in energy at certain wavelengths it then rapidly releases that energy and when that energy is in a VISIBLE wavelength it is seen as Fluorescence.
In the aquarium hobby we use Actinic Light or Deep Blue LEDs as the energy source or "EXCITER" to enhance the corals fluorescence.
This image is an example of what one can expect with an "EXCITER" filter for photography.

This image is NOT enhanced. It is shot and processed as a normal RAW image with only Black level adjustments.
What you are seeing is the fluorescence of the coral captured with An Exciter filter and a Barrier filter. A system developed by Dr. Charles Mazel

This coral is a dull green and brown with the naked eye under T5 bulbs


flor1 by in his image, on Flickr
 
Definitely a cool feature of these animals!

My exciter is the "NightSea underwater flashlight". I'm not sure what the specific nanometer rating is on it.

For the filters, I was trying various hued, black & white filters. I am also not sure what the proper name of them are. I picked them up at a local photography store that has a bin of old used filters...my wife actually had to tell me what they were used for!

Tripod and remote trigger were used, of course...

flourescence2003.jpg



flourescence004.jpg



flourescence2014.jpg



flourescence2001.jpg
 
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