actinic lighting

[reefburnaby]

Hello,

For the most part, I agree with Darren (except follow the others lead part). If you have a camera that can do spot metering (most SLRs), then you can use that to do some light measurements.

As a sample, my 20 reads 1/60 @ F2.8 with ISO100. The reading is made on a grayish surface something like live rock. It is also made on the rock that is near the center of the tank, but at the bottom of the tank.

I will bring my camera over to meeting, take a spot meter and see how it compares.

Darren, maybe you can use your camera do a light reading of your tank and compare.

- Victor.