UPDATE TO CURRENT PROCESS SHORTCUT If you ve used a previous version of Lightroom and are now using Lightroom 4, you may see a small exclamation mark icon in the lower right of the main preview area. Click this to update the develop settings for the file to the current 2012 Process Version. Option-clicking (PC: Alt-clicking) the exclamation mark will update the Develop settings for just the current image and bypass the dialog that asks if you want to update just the current file or all the images in the Filmstrip. CREATE DEVELOP SNAPSHOTS Often when working on an image you may want to create a record of how the image looks at that point. To do this, go to the Snapshots panel on the left side of the interface and click the Create Snapshot icon (+), or just use the handy shortcut of Command-N (PC: Ctrl-N). As you mouse over the names of different snapshots you ve created, the Navigator view in the top left will display the image with those settings. We ll return to another cool thing you can do with snapshots shortly. BEFORE AND AFTER VIEW SHORTCUTS The icon for the before and after views can be found just under the main image preview on the left side, but the different keyboard shortcuts are much faster. Press the Backslash key (\) to change the main image view between the adjusted view and the original view. Press Y to see a left/right before and after view. Press Option-Y (PC: Alt-Y) to change to a top/bottom before and after view. Finally, press Shift-Y to change to a splitscreen before and after view. When you leave the before and after view as a spilt screen, the next use of the Y or Option-Y (PC: Alt-Y) shortcuts will cycle through the left/right and top/ bottom split-screen before and after views. To return to cycling between a left/right or top/bottom before and after view, just press Shift-Y again. CHANGE THE SOURCE FOR THE BEFORE VIEW Comparing the current adjusted version with the original is very useful, but what if you want to compare the current interpretation with an earlier version represented by a snapshot or a specific history state? Right-click on a snapshot or a history state and choose Copy Snapshot (or History Step) Settings to Before. The Before view will now reflect the snapshot or history state you ve chosen. To return to the standard unadjusted view, find the opening history state at the bottom of the History panel and set that as the source for Before. SET UP A SECONDARY DISPLAY WINDOW FOR DEVELOP COMPARISONS There may be times when you need to adjust one image to match another, but the two are different enough that simply synchronizing the Develop settings won t do the trick. To see a side-by-side comparison with another file so that you can adjust the active image to match it, click the secondary display button in the lower left just above the Filmstrip thumbnails (it s a number 2). If you have an actual second display, this will open a new window on that display. If you only have one display, it will open a secondary window (kind of like a virtual second display!). Click-and-hold on this icon and, from the drop-down menu, choose Compare. Select the image you want to work on in the Filmstrip, and then Command-click (PC: Ctrl-click) on the image you want to compare it to. Now you can adjust the one image and easily see it side-by-side with another file that you want to match it to. To make adjustments to the other file, simply click on it in the Compare window to make it active.

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