Quote Originally Posted by blansky
Since it does not measure seconds but lux units, or units of light, then I don't think that 3x10 or 30 seconds would be any different.

Where the differences come into play, in my opinion is bulb warm up in the timers that measure strickly seconds.

Michael McBlane
HI Michael, the Metrolux has a function on the left side that allows for real time if I am correct. It looks that way to me. It is just below the Lux I and Lux II lights and right above the calibration light selection.

I have no disagreement with your other statements and the 3 second deal is really not important if you use Lux in my opinion.