The Planted Tank Forum - View Single Post - DIY PAR meter, Yeah you heard me
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post #23 of (permalink) Old 11-10-2010, 07:02 PM Thread Starter
Children Boogie
mistergreen's Avatar
Join Date: Dec 2006
Location: Cincinnati
Posts: 16,743
Here you go..

The proportions doesn't look like a x2 constant calibration... It looks like a gaussian curve (bell curve).... Will work on the equation unless some math wiz out there beat me to it

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