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Re: Exposing for late afternoon or evening shots

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Chris Wright
Re: Exposing for late afternoon or evening shots
on Feb 18, 2019 at 5:39:18 pm

log is just a word. its how the bits are spread out over a logarithmic curve. in terms of precision, the highest quality point on the log graph is where the curve is exactly 45 degrees(pure linear). this is also where you get the most precision with white balancing. (this is why native white balancing rec. 709 used to be 90 but log is 50, also known as white balance compression)

a good rule of thumb for vlog :Exposure for VlogL is 55 IRE for Caucasian skin tones, and 80 IRE for highlights.
whenever you deviate from this, you are losing bits, in the shadows or in the highlights, you have to decide which is more important. always try to get it exposed right in the camera, then grade in post.

you can light some scenes a certain way, but that is the way they will end up, with less wiggle room. back in the days of film, they did this right the first time as film was very expensive.

one modern trick with CMOS sensors is that they love 5000k over 2000k lights for less noise, even the RED camera does.

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