I recently purchased a color-checker for video since most of the time I leave my camera's white balance on automatic. It does a pretty good job but it isn't perfect. So I'm practicing color correcting in my room before I go out in the field and make an fool out of myself. This color-checker is pretty amazing. It's witchcraft.
For this test, I used two LEDs (1 flood, 1 spot). The noise from my camera is noticeable at 1600 ISO. Yikes! Aputure Amaran's 528s do not put out a lot of light. I would like to get a 672 flood as a key light, but I have to work with what I've got. I placed a soft box over the spot light and left the flood uncovered, using only a plastic white diffuser. I probably should have placed the lights closer to me to soften the shadows.
Here's a screenshot of the non-corrected clip (ignore the ugly shadows). It's underexposed. Even more so because I compressed the picture. I should have bumped up the ISO, but I didn't want more noise than what's already there. Anway, there's a magenta tint in the image. At least that's what it looks like to me.
And here's the corrected version after using Color Finale to read the small colorful squares. Now the noise is more noticeable after bumping up the exposure, but I'll nail it next time in camera. At least my skin tone looks normal!
I took the corrected footage and matched it to another clip without the color-checker in the frame. Boom. Done in a couple of clicks. I'm sure the results are not perfect, and they could use some tweaking, but they look good to me. And it makes the job easier. I'm going to keep practicing until I get it right every time.