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So now we are going to dive into really the heart of Aperture in terms of image adjustment. We are going to be looking at the Adjustments pane. We are going to be talking about all the different great tools that we have. But before I do that, I just want to revisit this notion of master file versus version, because this is important to understand what's going on when we do make these image adjustments. The master file for a photo, that's the image that you load into Aperture that comes, let's say, directly from your camera.
So that is the file that goes into Aperture, and then Aperture refers to that file constantly. And when you start working with that file, then it creates a version of that file. But that never really messes with the master. It just refers to it. So for example here, here's a picture that I have done some editing on, and we are actually looking at a version of that image. If I were to hold down the M key, just tap it there, that's my Master file.
That is the original RAW file that I captured, and we will go over here to our Metadata, and we will see that I captured with a 5D Mark II using the 7200 mm zoom lens. It's a RAW file. I used the Cloudy White Balance Preset. That is the master file. That is the original thing. This never really gets messed with, but it does get referred to so when I start working with a file, I am just going to hit M again to bring us back to the version, then this is what we are looking at.
We are looking at the version based on that master file. Now interestingly enough, to really play this out, for example, you can have many versions from the same master. I can right-click on this file right here. And I can either Duplicate the Version, in other words, bring over the work that I have done on it so far into a new file, or I can create a New Version from the Master, essentially starting all over again. Let's go ahead and Duplicate the Version. Here we go right here so we have one here and we have one here, and we can even put them together in a stack, just click on them both and then go to Stack.
So we can have them together, and we will play with our thumbnail size here. So they are next to each other, so I have worked on this one already. And now I have duplicated that version. So, let's say for this other version that I would like to make it black and white. Very easy. So right now, we will just go to Presets, and we will pick a Black & White. We will just pick that one right there, and now we have a Black & White. So we can open these up side by side.
Here we'll go up to View, and then we will go to Main Viewer, go to Stack. Here we go, so we have them side-by-side. Now we haven't added a whole other master file to this ,and if we go to our Metadata and we go to General, we will see that this is a pretty large file, right? Twenty four-and-a-half megabytes. Now by creating a Black & White version, I have not added another twenty four-and-a-half megabytes to my hard drive. This is simply metadata, and with Aperture, you can create version after version after version.
And it's basically just a set of text instructions because how this file is created is that Aperture referred back to the original file that I showed you, and then it read these changes that we made, and then I applied some more changes, and it read those. So this is the beauty of working in Aperture, in that you can have all sorts of variations on one file, but you are not spending a lot of disk space to do that.
So for the most part, when we are working in this application, we are definitely creating versions that are referring to the master files. And the reason why I tell you that, we are going to be doing a lot of fun stuff, and you can always go back to the master file if you want. You will never harm it, and this allows you to just play, and play, and play, and experiment, not worrying about filling up your hard drive with a bunch of different variations of the same image.
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