Metering?

[D-50]

This may be a ridiculous question but can someone explain metering to me, I think I know how to meter light with a DLSR but have never earned the formal explaination.

[TPF Sponsor]

[xfloggingkylex]

This may help some

http://www.dpreview.com/learn/?/Glos...etering_01.htm

and if you go to the "exposure value" link in the first paragraph you can mess around with different settings to see variations of the same exposure value.