Originally posted by thechumpen Is there any difference in getting the exposure right when you take the picture versus modifying it in PP (e.g. Lightroom) afterwards?
There are two senses of the word "exposure":
1.
Visual exposure - when the final image appears, more less, to match the naked eye's perception of the original scene's light level.
2. What I call, for the lack of a better word, "
Data Exposure". That is the level of exposure that is optimal for capturing the maximum amount of editable data.
For myself I always shot RAW and ETTR. ETTR is simply always pushing the right side of the hgram to the very limits of the sensor and letting the shadows fall where they may. This is exposure in the second sense. Then later in PP I worry about getting a proper visual exposure.
So to answer your question - yes there is a big difference. In one you are trying to expose for a final visual image right out of the camera and in the other you are exposing in order to give your PP software maximum optimal data to work with at the back end of the process.
I hope this makes some sense - it's still early in the day for me.