Quote:
Originally Posted by mike31154
Those are great links, thanks for sharing. I have an old light meter from the 'film' camera days and have often wondered if I could somehow use it to measure the light output of my fixture(s). Searches for conversion of LUX to PAR a couple of years ago didn't yield much in the way of useful info. The tables on the Apogee site & in the Advanced Aquarist articles appear to have what I may need without having to purchase a sensor. I do have a multi-meter at home, as I'm sure many others have as well, so the Apogee option of simply buying the sensor is awful tempting.
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while the conversion is there it is still not proper as it assumes all the light the lux meter is reading is in the PAR range. so it will only work if the lights you are measuring put out nothing but light in that specific range, other wise you will get an artificialy high par number after the conversion.
Steve
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