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If you use Photoshop, one of the things that you know is that Photoshop allows you to perform similar tasks in different ways, and so it is with Camera Raw. We can modify the tone of our photograph using the Basic panel, but we can also do this using the Tone panel. To access this panel click on this icon here, you'll notice we have two tabs; Parametric and Point. Let's start off with Parametric. Well, the Parametric Curve is a little bit locked down, in the sense it has some built-in kind of safety net features, so that if we make an adjustment by simply clicking-and-dragging one of these sliders, you can see that it's primarily limited to this range.
Click on the Preview button and you can see that I'm primarily brightening up this side of our grayscale here. Well, if we take and drag this further, you can see, again, I'm just brightening up that area even more. Well, you notice that this curve line is kind of limited to this area. It's limited because of these icons and these points down here. Drag this to the left and you can see that I can allow this adjustment to affect more of my image. Now, if ever you need to reset any of these points, we'll just double-click them and it will then take all of these back to their default settings.
Now, we can work on different areas of our photograph, as you can see here, and as we make these adjustments, sure, it will affect a lot of the curve, but primarily it's trying to limit the adjustments to one tonal range. Another way that we can use this tool is by navigating to our Tools panel and we can click on this icon here. This allows us to select say the Parametric Curve, then you can hover over your image. Next, simply click-and-drag and it allows you to change the values in that area.
In other words, if you want to brighten the Shadows, click on those and then drag up and you can see how I'm bringing light into this area. If you want to darken the Highlights, click over there and drag down and you can then darken those. All right! Well, not that we have seen how the Parametric Curve works, let's double-click all these sliders to take these back to their default settings and then let's take a look at the Point Curve. We will click on the tab for the Point Curve. The Point Curve works a lot like curves in Photoshop, and what's fascinating about this is we can either work in the composite RGB Channel or we can go into specific channels.
Let's start off in the composite RGB Channel. Here if you click on the curve and drag up, you can brighten the overall image. Or we can change where this point is, perhaps we just want to brighten our Highlights, and then we can click in our Shadow area and we can darken those down. In this way we've created this traditional S curve, which adds more contrast to our photograph. There it is, there is the before and now here is the after. If you want to remove a point, just click-and-drag that off, and then you'll notice too we have our endpoints, which allow us to make some pretty dramatic adjustments in regards to our Whites and also in regards to our Shadows. All right! Well, what about the different channels? Well, if you go down to the Red Channel, you may know from Photoshop that you can drag up and that will increase the Red.
Drag down, that will increase the Cyan. To remove that point, click and drag off. Next, we can go to our Green Channel. Here we can modify Green or Magenta. And then finally we have that Blue, Yellow Channel. Dragging up towards the word or the name of the channel will increase that color; dragging away will increase the opposite color, in this case Yellow. So here you can see we can have precise control about how we are changing color or tone when working with the Point Curve.
And again, this is a lot like curves in Photoshop, if you're familiar with that particular adjustment. All right! Well, now that we've seen how we can start to use some of these sliders and how this works a little bit, let's see if we can't explore how we can work with these controls on a few photographs, and let's do that in the next few movies.
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