Frits W�thrich wrote: > ratio you also could express it in dB. I am just comparing those two light > levels here. If it was 10 stops as in your example, the ratio would be > 1000, or 30dB.
A factor of 1000 is actually 60dB. The formula is dB = 20 log(ratio). Just being picky :) Cheers, - Dave http://www.digistar.com/~dmann/
