Quote Originally Posted by craygc View Post
But providing a middle-gray rendering of a metered area is not what incident meters do. They are keyed to the highlights and nothing else - great for transparencies and digital. With negative film, being keyed to the highlights doesn't guarantee anything about shadow detail, which is what you really want to be controlling at exposure time. Incident meters are certainly convenient and quick but for negatives, and having time to meter, cannot beat a spot meter for getting a desired exposure.
And that would also be a no.

You can use incident meters to peg to the main light (point it at the sun) or to open shade (point it away from the sun) or whatever, but they don't discriminate about what tones they see and are most definatel not keyed to the highlights.

Incident and reflective metering are both useful, with experience and understanding both can be very accurate. One is not better than the other.

I wrote a primer on incident metering here http://www.apug.org/forums/forum216/...-metering.html