The other day a customer asked me how to decrease the size of Lightroom’s Preview file (yourcatalogname Previews.lrdata). Although I had previously posted this Quick Tip video (How to prevent Lightroom’s Previews File from Taking Over the Hard Drive), he noticed that when deleting files from the catalog, the preview file size wasn’t immediately reduced. Well, it turns out that there is a slight time delay because, if you simply remove an image from the Lightroom catalog, you can still tap Command + Z (Mac) | Control + Z (Win) to undo the removal and have the photo(s) appear back in the catalog. Therefore Lightroom waits to delay that sort of clean-up task until there is an idle moment (when you aren’t making changes), and then runs in the background, so that priority tasks have all the processing power they need.
Posts tagged "Preview"
In this episode of The Complete Picture, Julieanne shares several suggestions for hardware, software, and preferences to help optimize the performance of Lightroom. Keeping these tips in mind when setting up a new system or refining your current system will help speed up Lightroom and make you more productive.
Previews, File Size, Lens Correction, Local Adjustments, Camera Raw Cache, Automatically write XMP to Files, Saving files, Preferences,
In this video tutorial (Why Does the Photograph’s Preview Change in Lightroom and Bridge? ), Julieanne explains one of the great mysteries of Lightroom and Bridge – why Lightroom (or Bridge) displays a photograph one way and then changes the way it looks a moment later. It will all become clear with just a little information about how digital camera files are captured and displayed by different applications.
Here are a number of shortcuts to help navigate the before and after views in Lightroom’s Develop module:
• “\” toggles Before and After view full screen (one view showing at a time).
• “Y” displays Before and After (Left/Right) View. Add the Option (Mac) / Alt (Win) to toggle Before and After Top/Bottom view.
• Shift + Y toggles to Split Screen view.
• Drag and drop the name of any state from the History panel on top of the image in the “Before” preview area to compare with the current state (this can be infinitely more useful then comparing the original “Import” state!)
• Control (Mac), right mouse (Win) -click on a Snapshot to “Copy Snapshot Settings to Before” preview in Before/After view.
• Command + Option (Mac) / Control + Alt (Win) + Shift + Left/Right arrows move the After state to Before/Before state to After.
• Command + Option (Mac) / Control + Alt (Win) + Shift + Left arrow moves the After state to Before.
• Command + Option (Mac) / Control + Alt (Win) + Shift + Right arrow moves the Before state to After.
• Command + Option (Mac) / Control + Alt (Win) + Shift + Up arrow swap the Before and After state.
And, if you only want to preview the effects of a certain panel, click the toggle switch at the top of the panel to temporarily hide the panel’s effects (except the Basic panel – it does not have this switch).
“P” toggles the Preview on/off (to quickly compare before and after). However, it only toggles on and off the preview for the active panel (Basic, Tone Curve etc). In order to toggle all changes made in all panels, select the Presets or Snapshot’s panel and tap “P”.
“V” toggles Hide/Show Adjustment Brush pins and/or the tool Overlay for Graduated Filter, Spot Removal and Red Eye Removal tools.
When working with the Adjustments panel, holding the backslash key, displays a temporary preview of the unadjusted state of a document. (It’s like unchecking the Preview check box temporarily – so you have to have made a change to the adjustment for this to work.) Because of the need to distinguish a tap from a hold, there’s a slight delay before the results of the hold behavior become visible.