When you’re color correcting and grading, it’s important to accurately assess your video signal.
You need to know if you’re crushing the blacks in that night shot,
clipping the whites in those clouds, and what exact hue and saturation
that logo is. Your monitor may not be properly calibrated, so that can’t
be trusted, and our eyes adapt to the image, so we can’t trust them
either.
But we can trust the scopes. The scopes never lie.
They can be quite intimidating, though, if you’ve never learned how to
interpret them. If you get high blood pressure and a rash from opening
the scopes panel in your editing software, this article will cure your
scope-o-fobia.
We’ll cover the most used scopes—
Waveform scopes (RGB, Luma, YC and RGB Parade), the
Vector Scopes, and the
Histogram—and look at practical uses of all of them.
To website
To video 
