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Validating DNGs

From: Lightroom 5 New Features

Video: Validating DNGs

Here I want to highlight another new feature that we'll encounter in Lightroom and this one is called DNG Validation. Now this will be relevant to you if you work with the DNG format like I do myself. In order to get to know why this matters, I think it's helpful to take a look at why people use this format. So before we get to Lightroom, let's ask that question, why work with this DNG format? There are a number of different reasons why people use DNG files. The DNG format allows us to do different types of compression, sometimes that's Lossless where detail isn't lost, other situations it's Lossy where detail is lost, yet in either scenario,the DNG format, it allows us to work more quickly in Lightroom.

Validating DNGs

Here I want to highlight another new feature that we'll encounter in Lightroom and this one is called DNG Validation. Now this will be relevant to you if you work with the DNG format like I do myself. In order to get to know why this matters, I think it's helpful to take a look at why people use this format. So before we get to Lightroom, let's ask that question, why work with this DNG format? There are a number of different reasons why people use DNG files. The DNG format allows us to do different types of compression, sometimes that's Lossless where detail isn't lost, other situations it's Lossy where detail is lost, yet in either scenario,the DNG format, it allows us to work more quickly in Lightroom.

Sometimes that means that we can work with Fast Load DNGs and we can work up to eight times faster when it comes to previewing and working with our images in the Develop module. In other situations, it allows us to work without Sidecar XMP files in comparison to RAW files, which need the Sidecar XMP file. Another reason why people use this format is for archivable confidence. The DNG format is Open Source, therefore,people are confident that they will be able to access and work with their images into the future.

Now there's a new reason for using the DNG format and it's this DNG Validation; this new feature, which we're going to highlight here. All right, well what is DNG Validation and how does it work? Let's jump to Lightroom in order to take a look. Now that I'm inside of Lightroom, I want to continue to talk about DNG Validation. You know one thing that happens with whatever type of file format we use is that eventually, some of our files will become corrupt. This is just the nature of working on computers. What we can do is we can find those files and then we can get rid of them and let me show you how.

In the Library module, you can navigate to the Library pull-down menu, then you can you can select Validate DNG files. What this will do is it will ask Lightroom to scour and scan your entire Lightroom catalog and search for any DNG files that are bad. A great thing about this is that if it finds any files, it will put those in a collection. Now here, my library is in good shape and that is a good thing. Yet if it found a file, it would put it in a collection. And the reason why this is helpful? It's kind of the same reason why it is helpful to know if you have a rotten apple inside of a basket full of apples because it's better to find out beforehand that the apple is rotten before you sink your teeth into it.

In other words, this will just help you to realize, hey, you know what, these files are corrupt. And sometimes there's nothing you can do but get rid of those files, clean house, delete them. In other situations, you may discover that a file is corrupt and that you have another version of that file on a different hard drive. That will you give you the heads up to go looking for the better version of that particular file. Well either way this new feature is a welcome new feature because it now allows us to find those files which are corrupt and you can access this option by navigating to your Library pulldown menu and then by selecting Validate DNG files.

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This video is part of

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Lightroom 5 New Features

40 video lessons · 17171 viewers

Chris Orwig
Author

 
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  1. 2m 2s
    1. Welcome
      1m 17s
    2. Using the exercise files
      45s
  2. 9m 28s
    1. Using the aspect-ratio crop overlay
      3m 25s
    2. Viewing your work in true full screen
      3m 27s
    3. Customizing the grid and guide overlays
      2m 36s
  3. 15m 55s
    1. Automatically leveling your photographs with Upright
      3m 47s
    2. Fixing perspective with Upright
      5m 43s
    3. Achieving great results in difficult situations using Upright
      6m 25s
  4. 17m 37s
    1. Applying more flexible and precise retouching
      4m 35s
    2. Removing large distractions
      3m 39s
    3. Making linear and free-form corrections
      5m 0s
    4. Spot Healing tips and shortcuts
      4m 23s
  5. 15m 52s
    1. Introducing the Radial filter
      5m 43s
    2. Radial filter tips
      4m 29s
    3. Using the Radial filter in your workflow
      5m 40s
  6. 23m 23s
    1. What is a Smart Preview?
      6m 36s
    2. The advantage of Smart Previews
      2m 48s
    3. How to generate Smart Previews
      5m 14s
    4. Filtering for Smart Previews
      3m 48s
    5. A real-world scenario with Smart Previews
      4m 57s
  7. 8m 11s
    1. Adding text with ease
      1m 51s
    2. Including page numbers
      1m 37s
    3. Identifying favorite page layouts
      1m 29s
    4. Creating custom page templates
      3m 14s
  8. 9m 2s
    1. Building a slideshow with still images and video files
      4m 48s
    2. Playing slideshows with still images, video, and a soundtrack
      4m 14s
  9. 24m 39s
    1. A better way to import photographs
      3m 3s
    2. Using targeted collections with increased speed
      3m 38s
    3. Improvements with Smart Collections and Smart Filters
      2m 24s
    4. Adding direction metadata
      1m 20s
    5. Collection consistency
      54s
    6. Dragging photos to saved Map locations
      50s
    7. Importing and working with PNG files in Lightroom
      4m 22s
    8. Tethered capture shortcuts
      3m 59s
    9. Validating DNGs
      3m 12s
    10. Viewing LAB color values in the histogram
      57s
  10. 16m 29s
    1. Improved Spot Removal with feather control
      7m 38s
    2. Spot Removal autoselection
      5m 29s
    3. Better color noise reduction with smoothing
      3m 22s
  11. 5m 50s
    1. Lightroom for mobile
      5m 50s

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