- Sep 9, 2011
It does indeed.450nm seems to work better.
Correct!I'm assuming you used a yellow filter to block the blue light.
Both, as long as you use a yellow mask filter.with my UV lamp, I could only see the green fluorescence. You seem to get blue and red as well. Is this visible with the eye or only on camera?
You should!I think I'll change my light to use blue leds instead of UV...
Some corals do not even fluoresce with UV, but they do with blue light!
UV LEDs are also 10x less efficient (less luminous flux) than blue LEDs but 10x as expensive.
As unnecessary as it may sound, but you'll also need a dichroic blue-pass filter for your torch with blue LEDs, in order to get the best results.
See http://www.firedivegear.com/science/excitationfilters/ to find out why.
See also http://www.firedivegear.com/science/barrierfilters/ for the right mask and camera filters.