All language subtitles for [4] Using scopes to evaluate exposure
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- As we work our way through the color page,
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you might have one question,
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which is how do I know if I've gone too bright
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or too colorful?
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Like how do I evaluate my image
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to know that I'm within acceptable realms
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or if I'm clipping out detail
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and that's where wave four monitors
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and vector scopes come into play
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and that's what we're going to take a look at
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in this movie is we're going to start with wave forms,
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which is essentially evaluating brightness.
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Now our scopes are down here on this scopes palette
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and there is an expand button here.
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So you can go ahead and expand that out.
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And after I've expanded out,
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notice it disappears from down here
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and it has a little orange box
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showing you that it's broken out.
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If I click on the orange box,
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it pulls back into its position
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down in the lower right-hand corner.
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I can also press Command + Shift + W
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or Ctrl + Shift + W on a PC,
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as a keyboard shortcut to pull up my scopes.
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You can change and configure your scopes
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in terms of how large they are.
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You can change how many scopes are showing at a single time.
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So I go with single scope, dual scope,
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four up or six up view.
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Six up view does something that's new individual resolve,
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which it allows you to pull up different versions
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of the same scope.
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So here I've got my vector scope in the middle tile,
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I can go down and pull up my vector scope
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in a secondary tile and change the option.
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So if I want to do a 2X zoom on my vector scope,
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so I have my normal vector scope
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and then my zoomed in vector scope, I can do that.
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And I could also do that, say on the fora pallet,
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where now I have these two versions of the same scope.
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This is new and resolve 17
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you won't find this particular functionality
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in earlier versions of resolve.
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Each of these scopes does have an options menu,
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a settings menu so you can change different views
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as to how they work,
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you can change how bright the traces are,
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so we call these traces, showing you where your pixels are,
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and then there's the gratisQLs, which is the scale.
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And you can change how bright or dim those are.
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And if you get lost on this,
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if you've been making a bunch of changes
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and you're trying to get it back to default,
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just click on reset view, and it'll give you your default.
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Now I can change any of these at any time,
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so if I want to get rid of this secondary vector scope,
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I can click on the pull down and pull up what I want.
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Well, we're going to focus on for the rest of this movie
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is the wave form.
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And really there are two forms of wave forms.
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You've got the parade,
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which is what we're looking at right now.
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So the parade is red, green, and blue,
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a popular option that a lot of colors like to work with
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is not just the RGB, but the YRGB.
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So this shows me the Y channel, the brightness channel
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shows me a sum of the red, green, and blue.
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When red gets added with green and blue,
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green and blue don't have the same weight as red
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and so it's not just a straight 1, 2, 3, adding them up,
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one plus one plus one equals three.
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And so the why only shows you
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that weighted summation of the three channels
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to show you really what that final brightness value
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looks like.
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The parade view is fantastic
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for showing you things like color imbalances,
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so for instance, without even looking at this image
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if I just cover it over this image,
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and let's also cover over the thumbnail
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which shows us our image,
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so just looking at this, I can take a look and say,
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oh, okay, so my red channel is slightly weaker
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than my green channel,
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which is slightly weaker than my blue.
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By weaker I mean, the blue channel goes up higher
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than the red channel does,
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and it has more shadow detail than the red channel does.
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You'll notice on the left-hand side, we've got this scale.
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It starts at zero and goes up to 1023.
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That's because this has set up for 10 bit.
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I can come up to the overall options pallet
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and change the scale style.
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If you're an old school editor or colorist,
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you may be more familiar with millivolts
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or maybe you're familiar with percentages.
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So zero, would be 0%, that would be pure black
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and a top would be a hundred that would be pure white.
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But if we take we'll look at the wave form,
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the wave form is just a single view.
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In this particular wave form,
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this is the RGB overlaid on top of each other.
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So if you were to take that parade view
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and take these three channels, red, green, and blue,
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and super impose them on each other,
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you end up with your wave form display.
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And again, you can see that there's imbalance.
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So the blue is brighter than the green,
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which is brighter than the white and the highlights,
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but where they're equal on all three channels,
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they get some together and you see this white trace.
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That means red, green, and blue
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are balanced with each other.
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Typically where you see balance,
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you're not getting any particular bias
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towards one color or another.
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In the shadows down here,
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you can see that as we approach black,
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we're getting a lot of blue kind of tinting going on
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in the shadows,
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and that can help us inform
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what changes because we want to make
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in our three-way color corrector or in our custom curves,
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in order to balance out this image.
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If you're not using the wave form
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to help you determine color balance,
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and you just want to look at brightness,
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you can come down to this option here
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and just go Y only.
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Now some people prefer not seeing the colors
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on their wave form,
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and you can turn that off and not colorize it.
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So you're just getting a pure look at the brightness values
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and that really worrying about the RGB balance.
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Why?
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Well, because you can always come up with a two of you
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and then you could have your wave form in one view,
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and then you pull up your parade and the other
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and if I go ahead and change my parade just to RGB,
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now, I've got a full display showing me my brightness
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and I've got the RGB parade
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showing me my relative color balance
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between the three main color channels.
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If you're coming from another system
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where you have experienced color grading,
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you may want to go ahead and turn on the low pass filter
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and this kind of cleans up the wave form
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and shows you a pure brightness only view of the scopes.
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It's how I tend to like to view the scopes,
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it makes it nice and neat to look at.
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You may also find depending on your display,
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that rather than this kind of shape,
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and let's go up to the forum view.
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You might want to more of a 16, nine views,
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so you can come down a ratio and change this to 16, 9
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and that'll help you fill up your screen
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a little cleaner if you have a 16 nine screen,
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if you have a secondary display, you can grab this
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and put it over onto your secondary display.
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You can also adjust the quality here.
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So if you find that you want your scopes up,
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but they seem to be slowing your computer down,
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you can either flip it into auto
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and resolve will change the quality depending on
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whether or not you're playing down the timeline
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and I'll drop reduce the resolution as it needs to,
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or you can force it to always be in high-quality
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and give you kind of the cleanest looking scopes possible.
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And it really makes the traces look a lot cleaner.
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So in the next movie let's take a look at this down here,
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the vector scope to show us what that's telling us.
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