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The Adobe® Photoshop® Lightroom® 4 Book: The Complete Guide for Photographers by Martin Evening

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Assessing your images

Comparing before and after versions

While you are working in the Develop module, you can simultaneously compare the before and after versions of any photograph you are working on. This allows you to compare the effect of the develop settings adjustments, as they are applied to the image. To view the before and after adjustments, click the Before/After view mode button in the Toolbar and then click on the disclosure triangle (circled in Figure 4.79) to select one of the four Before/After viewing modes from the fly-out menu. These viewing modes let you display two identical views of the currently selected image. You can choose a Left/Right view to see a horizontal side-by-side before and after preview, or you can choose a ...

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