If you are working on commercials you probably know this situation.
There is a mainfilm and some versions. Mostly the same shots and additional some alternatives.
And then there are revisions in the following days or even weeks.
The edit has changed and in most cases it is just a few shots to change.
So far so good.
So the inhouse producers thinks: Hey, it is just a shot. Probably copy&paste. The assistant can do it.
That’s sometimes right, sometimes very wrong. I will explain you why.
Imagine you watch a yellow color for only 1 second and then a blue picture.
Relax your eyes. Then watch the yellow color for 4 seconds and then again the same blue picture. The impression has totally changed.
Maybe in the new offline edit the order of the shots has changed or the length.
This is the point when copy and paste doesn’t work any more (in the worst case).
Grading is like a composition. You can’t just take the endpart from the song and put it in the middle.
Then you also have to change the surrounding areas.
Kepp this in mind.
I you change the edit (order of shots, speed, new shots)you should check the grading again.
Even if the shots are the same.