Originally Posted by markbarendt
GarageBoy you have identified the biggest challenge with reflective metering.
Black is dark whether in full sun or shade so if you meter from a black subject then you would open up the camera. Meter from white close the camera some.
The more challenging question is how much, not all blacks, or whites, are created equal and 2 is not always the answer.
If you compare by metering the black subject with an 18% Grey Card in the same light it gives you a pretty good idea how much to compensate.