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EXIF Data
09/30/2008
Canon EOS 5D
EF 16-35mm f/2.8L
Focal Length: 16mm
Shutter: 1/100
Aperture: 8.0
ISO: 200
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Here's
an example of the day / night cycle with the lighting
system. At night the blue LED's
come on
for nocturnal viewing. Then early in the morning the
white LED's will switch on to
get the
fish and corals primed for the day. Then a couple
hours later the actinics (blue) bulbs
will
light up to warm up the corals. Corals use
photosynthesis to manufacture food and build
their
endoskeletons. The actinic range of light is the type
of radiation they use. Finally the
metal
halides will kick on so the tank has the equivalent of true
sunlight beaming down.
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