The reply from ZoneV is pretty much my view as well.
>At the same time, I was thinking >today that with digital, as easy as it is to tweak the >exposure after the fact, why not let the camera get >"close enough" to a good exposure via aperture >priority shooting and clean it up later if necessary?
Yes, you can expect to adjust exposure perhaps +/- 1 EV but this wouldn't work for a reasonably large minority of my images:
- you can't clean up subject movement blur (or create it if you want it) - there is very little latitude for exposure corrections in post in images that were at high ISO and therefore noisy - the dynamic range of real scenes and of our eyes still far exceeds that of the camera sensors. That means loss of details in shadows and highlights if one isn't careful about getting the right exposure in-camera. - shots that are correctly exposed in-camera often have a certain richness in their tones and colours and that decreases when exposure and tone curves are adjusted.