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1. Re: Scopes question Waveform & RGB Parade
R Neil Haugen Mar 3, 2014 2:00 PM (in response to ALLENT)The Speedgrade scopes are in a "floating point" method of operation, which cause some (to some of us) odd appearances of data on the scopes. I've had why this is so and why it is best explained to me, and ... yea, I can see the point theoretically ... but my brain doesn't work that way when I'm editing/grading. So ... one can get this sort of thing happening where two scopes don't "seem" to align or show the same thing but supposedly they actually are ... just from a different perspective than each other or me for that matter.
I don't know if that is precisely why you're getting this particular reading at that moment of your footage ... posting a screen-grab here would of course help some of the masters around here (I'm certainly not!) give you a better answer. Listing what your computer specs and exact versions of Sg and what footage/codecs you are using would be helpful also.
Neil
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2. Re: Scopes question Waveform & RGB Parade
JSS1138 Mar 3, 2014 5:52 PM (in response to ALLENT)My guess is the discrepancy you're seeing is the Luma signal doesn't go below 0, but the color signals do. (I assume your media is YUV, not genuine RGB?)



