The meter can still be useful for lighting ratios but for actual exposure the ultimate decision is inside the camera which you can already see with the zebras. The days of having to have one to nail your film exposure and then waiting for processing to see if you had are thankfully long gone.
Setting your key, fill, back ratios can be done by meter if you need that level of setting and don’t want to eyeball it.
Jim McNally
The Commercial Factory
http://www.commercialfactory.com