Metering Systems
Canon has introduced several different metering systems for its flash products: A-TTL, E-TTL, and E-TTL II. Each system represents different approaches to achieving the proper flash exposure.
Read more about this topic: Speedlite EX
Famous quotes containing the word systems:
“The skylines lit up at dead of night, the air- conditioning systems cooling empty hotels in the desert and artificial light in the middle of the day all have something both demented and admirable about them. The mindless luxury of a rich civilization, and yet of a civilization perhaps as scared to see the lights go out as was the hunter in his primitive night.”
—Jean Baudrillard (b. 1929)