playing around with my new XTi and i have a question for you experts. can someone explain evaluative metering vs. partial metering vs. center-weighted average metering? i understand the basics of what the metering is, but if someone could explain the specific benifits each has, and maybe a quick synopsis of the benifit of each, or maybe in what kind of situation i would want to use each one, i would greatly appreciate it. thanks guys


