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Let's continue to talk about the panels on the left, in particular, the Snapshots and History panel. In order to focus in on these two panels, let's collapse, or close the Navigator panel, and then let's open up Snapshots and History. Well, currently both of these panels are blank. How do these work, and what are these about? Well, both of these allow us to save some information about our photographs, or access different view states of our images in different ways. Let's take a look. Well here, I have this picture.
One of the things that I want to do is I want to change the way this image looks. So in my Basic panel on the right, I am going to increase the Contrast by clicking-and-dragging the Contrast slider to the right. I am also going to increase the Shadows by clicking-and-dragging that to the right. Next, I will go ahead and scroll down a little bit, and I am going to increase the Color Saturation. Well here, I have another version of this image. You can see the History has taken note of each step that I have taken; adding Contrast, adding some Shadow detail, and then increasing the Color Saturation.
So History will remember the steps that you have taken with your pictures. Well, what about Snapshots? What's that about? Well, if I click on this icon to add a Snapshot, I can create a new snapshot, either by the date and the time, or simply by naming this. I will just call this one v1, for version 1, and then I will click Create. There is one snapshot. Then I want to see, what would this image look like in black and white? Back to the Basic panel; in the Basic panel, I'll simply desaturate this. I will remove all of the color.
Well, there you have it! I am going to create another snapshot by clicking on the Plus icon. This one, I am going to call v2, for version 2, and then click Create. Well now, all of a sudden, I have some pretty valuable and interesting data over here in these two panels. How does it work, or how can we work with this information? Well, one of the things that we could do is we can click through the History panel. We could click on one of these areas, and it will take us back through time to the way that we process that image. As I go back through time, I may decide, you know what? It was really best just with a little added extra contrast.
I didn't need all of these other steps here. I like that a lot. Or, I can also go to the various snapshots. I can click on v1; it will take me to those settings. I can click on v2, and it will take me to the v2 settings, and it's going to remember everything I have done along the way. Now, if ever you reset an image, say you go to Settings, and Reset All the Settings, well, that's also going to be part of your history. In other words, you can still access what you did. If you want to add the exact amount of contrast you added initially, well just click on that History step, and that amount of contrast has been added. Or, on the other hand, if you want to go to one of those snapshots, you can always click on one of those snapshots in order to apply those settings.
Well, as you can see, Snapshots have kind of this built-in memory. It's almost like a layer in Photoshop, so to speak. Not quite, but again, it just remembers the state of your file at one point. History, well it's a little bit more fluid and more flexible. Sometimes what will happen with your History panel is it will get a bit cluttered. There may be some steps here you just don't want to remember. Well, in order to remove the history, you can click on this icon to clear all the history away from that panel, and that will be gone.
Also, in your Snapshots, if you want to get rid of a snapshot, like this one; I don't really like it. I can go ahead and click on the Minus icon in order to remove that snapshot.
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