Originally posted by itshimitis If you are exposing at -2 EV you aren't exposing to the right. You are exposing to preserve the highlights which will make the histogram lean to the left. The expression of expose to the right refers to the histogram which in normal circumstances helps recover detail from the shadows. I'd follow that with a Canon but not with my 645Z.
Well I think he is exposing to the right and I feel that your interpretation of ETTR is incorrect.
It's got nothing to do with where the histogram is sitting or bunching, but rather what side of the histogram you are choosing to push the exposure towards, which does not mean there will be lots of histogram data there.
For example, every landscape shooter should be using a live histogram and adding positive exposure comp until the point where the highlights clip, and when they do, wind it back 1/3 stop so it's not clipping and your done. That's ETTR.
The poster above said he has to use up to -2ev comp, that's still exposing to the right.
Yes, if a scene can in its entirety actually fully fit on the histogram, then push it all the way to the right, but that rarely happens like the traditional ETTR wiki posts would have you believe.