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Using the Lens Correction filter

From: Photoshop CS6 for Photographers

Video: Using the Lens Correction filter

Here we are going to take a look at how we can use the Lens Correction Filter in order to correct some common distortion that happens when we're photographing say with wider angle lenses or when we're in smaller spaces like this. And with this architectural photograph, you may notice that it's leaning a little bit to the right and there is a little bit of a slight band, there is some barrel distortion. Well let's fix this, or at least let's correct this a little bit by working with Lens Correction. To do that you first want to copy your background layer so that you have a duplicate version of this, because these adjustments will be so strong, if we make a mistake, well we want to have that background to go back to.

Using the Lens Correction filter

Here we are going to take a look at how we can use the Lens Correction Filter in order to correct some common distortion that happens when we're photographing say with wider angle lenses or when we're in smaller spaces like this. And with this architectural photograph, you may notice that it's leaning a little bit to the right and there is a little bit of a slight band, there is some barrel distortion. Well let's fix this, or at least let's correct this a little bit by working with Lens Correction. To do that you first want to copy your background layer so that you have a duplicate version of this, because these adjustments will be so strong, if we make a mistake, well we want to have that background to go back to.

Next let's go ahead and rename this layer, we'll call this corrections. Next let's navigate to the Filter pull- down menu then let's choose Lens Correction. The Lens Correction dialog allows you to make Auto or Custom Corrections, and let's start off by working with Custom. Here though in the Auto tab make sure Auto Scale is turned on, this will then crop the image as you make these corrections. Next we'll click on Custom. In the Custom tab we have the ability to make Geometric Distortion corrections, fix Chromatic Aberration, Vignetting, and also make other transformations.

Well here I want to start off with my Geometric Distortions. What we can do here is we can click-and-drag this either to increase or decrease the different types of distortion. Yet if you move too far you can introduce another type of distortion. In order to try to analyze what's wrong with the image so, what you might want to do is rather than just move these sliders; you may want to turn on the Grid. You can do that by clicking on this icon here. You can also change this overall Grid Size and sometimes by having a different Grid Size that can help you see the different lines in your photograph.

If you click on this icon, it then allows you to move that Grid around so that you can then line this up, say along the edge of this door here. You notice that it bends in, or we can move this up near the top of the image so that this line is lined up with this beam, and again there is some lean to the right and also some bend. Well now that we've seen that we could then use these controls. If you use this main slider you can make really big adjustments, really huge. Yet, if you want to make more subtle what you can do, is you can hover over the name of the adjustment and use the scrubby sliders.

That icon, the finger with the two arrows allows you to make these really small incremental adjustments. Now what we are going to need to do here is of course remove this distortion by increasing this amount. We also need to rotate the image a little bit. So let's do that by going down to Angle and clicking-and-dragging here, or another way that we can do this, rather than clicking-and-dragging is you can use this Straighten tool. By using this tool, you can click-and-drag along something that you think should be straight. In this case we could click-and-drag along the top of this wall behind the bed here and that would then straighten that out.

As you do that you may also though need to go into this tool to make any needed subtle adjustments in order to try to get things straightened out as much as you can. And here I am just modifying this a little bit to try to get those lines straightened up there. All right, well next we can go back to our distortion and here we want to experiment a little bit with how much of this distortion we can remove. Because the trick is, we're not going to get this perfect, but we can make this better. Well let's turn off this grid and let's evaluate our progress. Press the P key, that turns on the Preview on and then off, and this Preview is showing me that this image is indeed looking better.

Now as you make these changes you can also go back to Auto Correction and turn off Auto Scale. And what that will do is it will open up these gaps here above and below the photograph. Sometimes you may want to have those gaps visible so that you can then crop this image yourself or maybe even fill in those gaps. Let me show you what I mean. Well here we'll go ahead and click OK in order to apply these adjustments. Now if we turn off the Background layer, we can see that we have these gaps in these different areas.

Filling in these gaps is a little bit tricky and it won't always work well, yet a few might. You can choose one of your selection tools, say like the Magic Wand and you can then click on one of the gaps like this one here. Next, you need to increase the size a little bit by navigating to select and choosing Modify and then Expand. This will then give you the ability to expand this, let's just expand this by two or maybe three pixels and it just will make that selection a bit bigger. Well now that we've done that, what we can then do is fill this in with an adjustment which we've seen in one of our previous chapters.

It's called Content Aware Fill. In order to access that, we can use a shortcut. The shortcut is Shift+F5 that will open up the dialog, we can then select Content-Aware there and then click OK. And what this will do here, in this case if we go ahead and deselect, is it will attempt to try to fill in this area and it did a decent job. We could also go in with some of our other tools and do some cloning or clean up those edges. Let's try this edge down below as well. We can select that, go to our Select pull-down menu and then choose Modify and Expand.

You almost always need to expand the selection a little bit and then press Shift+F5 and then click OK. And again what it will try to do is kind of build out this selection for us. This isn't perfect; it doesn't work great all the time. Especially like with this top area of the photograph, if we select this and use the same technique, what we'll discover is that it's not going to look very good. It's going to work hard to try to make this right, but there's just too large of an area, so we can see that there are some problematic areas.

Yet that being said, sometimes this can be a great way to fill in certain gaps in your photograph. Either way, after you've filled in those gaps and maybe you've retouched them with some of the cloning or healing tools, what you'll need to do next is to crop. So let's access the Crop tool, and with the Crop tool I'll go ahead and hold down the Shift key to constrain the proportions, that just make sure I have the same aspect ratio as before, and then we can click and reposition the image in that crop area. If it's kind of clicking around here or snapping around, you can use your arrow keys.

This is a great way to subtly kind of move this image around, so that it fits inside of that crop area. And here, just pressing the Spacebar key, making sure all of my edges look nice and I think that's pretty good. Next press Enter or Return in order to apply that crop and then we can evaluate our overall progress by looking at our before and after. Well here it is, here's the before tilted and some barrel distortion and then after, after we've corrected that rotation and also removed some of the distortion.

Show transcript

This video is part of

Image for Photoshop CS6 for Photographers
Photoshop CS6 for Photographers

173 video lessons · 27358 viewers

Chris Orwig
Author

 
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  1. 1m 43s
    1. Welcome
      58s
    2. Using the exercise files
      45s
  2. 11m 49s
    1. Ideas for how to learn Photoshop more effectively
      4m 25s
    2. Isolating what you've learned and taking quality notes
      3m 53s
    3. Getting creative and being ready to be surprised
      3m 31s
  3. 38m 57s
    1. Customizing the Bridge workspace
      4m 46s
    2. Reviewing and evaluating your photos
      4m 22s
    3. Rating, ranking, and filtering photographs
      5m 42s
    4. Organizing photos with stacks
      3m 55s
    5. Grouping pictures together with collections
      3m 56s
    6. Adding metadata and keywords
      4m 47s
    7. Renaming images
      1m 45s
    8. Accessing the Photoshop tools from within Bridge
      2m 28s
    9. Working with Bridge and Photoshop
      2m 40s
    10. Working with Mini Bridge
      4m 36s
  4. 45m 29s
    1. Setting up your color settings
      3m 31s
    2. Choosing preferences for the HUD color picker
      3m 50s
    3. Setting image interpolation preferences
      3m 3s
    4. Modifying zoom preferences
      4m 20s
    5. Changing HUD brush options
      3m 41s
    6. Customizing interface preferences
      3m 30s
    7. Opening up documents in tabs
      4m 11s
    8. Reviewing file-handling preferences
      5m 4s
    9. Setting performance preferences
      4m 23s
    10. Choosing cursor preferences
      5m 14s
    11. Reviewing guides and type preview preferences
      4m 42s
  5. 21m 4s
    1. Exploring two simple steps for more accurate color
      2m 57s
    2. Introducing color profiles
      5m 17s
    3. Opening and saving files with embedded profiles
      7m 33s
    4. Setting up your studio
      1m 59s
    5. A demonstration of monitor calibration
      1m 46s
    6. Finding color management resources
      1m 32s
  6. 28m 34s
    1. Introducing the Tools panel
      4m 53s
    2. Changing the view mode and working with panels
      5m 33s
    3. Opening and arranging multiple documents
      6m 31s
    4. Combining, saving, and closing multiple documents
      5m 17s
    5. Creating custom keyboard shortcuts
      5m 11s
    6. Working with a Wacom tablet
      1m 9s
  7. 18m 24s
    1. The foundation of digital imaging: pixels and bit depth
      6m 12s
    2. Introducing image resizing
      3m 42s
    3. Resizing images effectively
      3m 48s
    4. Resizing and straightening with the Crop tool
      2m 28s
    5. Creative tip: sizing images correctly
      2m 14s
  8. 41m 56s
    1. What is Camera Raw?
      2m 47s
    2. Accessing the Camera Raw preferences
      3m 16s
    3. Improving your images with the basic controls
      7m 0s
    4. Correcting color and white balance
      4m 44s
    5. Processing multiple images at once
      5m 56s
    6. Utilizing the Crop tool to recompose your pictures
      5m 28s
    7. Creating dramatic black-and-white conversions
      5m 34s
    8. Reducing noise and making tack-sharp photos
      7m 11s
  9. 32m 55s
    1. Introducing layers
      2m 22s
    2. Understanding layers and layer transparency
      1m 29s
    3. Working with layer opacity
      3m 29s
    4. Aligning layers
      1m 32s
    5. Creating new layers
      4m 53s
    6. Organizing layers
      2m 31s
    7. Filtering and finding layers
      2m 8s
    8. Adding layer style effects
      5m 28s
    9. Creating a clipping mask
      6m 50s
    10. Targeting and moving layers
      2m 13s
  10. 33m 22s
    1. Making selections with the marquee tools
      4m 50s
    2. Using the three lasso tools
      4m 56s
    3. Selecting with the Magic Wand tool
      5m 43s
    4. Working with the Quick Select tool
      7m 21s
    5. Selecting based on color with the Color Range controls
      7m 13s
    6. Correcting skin tones with Color Range
      3m 19s
  11. 23m 2s
    1. Introducing masking
      1m 14s
    2. Painting away the contents of a layer with a mask
      3m 59s
    3. Using a selection to build a mask
      3m 3s
    4. Removing a subject from the background with a mask
      6m 37s
    5. Using a mask to selectively sharpen an image
      3m 58s
    6. Making selections with Quick Mask
      4m 11s
  12. 13m 42s
    1. Creating a custom border using selections and masks
      5m 4s
    2. Painting custom border effects
      3m 34s
    3. Using prebuilt borders
      4m 13s
    4. Exploring the PhotoFrame plug-in
      51s
  13. 11m 49s
    1. Adding brightness and contrast
      3m 3s
    2. Using hue and saturation and the Target Adjustment tool
      5m 34s
    3. Working with vibrancy and saturation
      3m 12s
  14. 14m 36s
    1. Working with auto levels
      3m 36s
    2. Enhancing color and tone with levels
      4m 12s
    3. Painting in adjustments with levels and masking
      4m 10s
    4. Creative tip: checking in
      2m 38s
  15. 29m 50s
    1. Introducing the Curves dialog box
      3m 12s
    2. Using auto curves and adjustments to enhance an image
      4m 17s
    3. Changing brightness with curves and masks
      3m 59s
    4. Using curves and masks to improve tone and color
      4m 56s
    5. Making advanced selections and masks
      3m 53s
    6. Enhancing a portrait with hand-painted masks
      5m 53s
    7. Using, modifying, and saving curves presets
      3m 40s
  16. 20m 12s
    1. Introducing the magic of blend modes
      6m 33s
    2. Blending multiple images together
      3m 50s
    3. Using blending modes to remove white or black
      2m 8s
    4. Improving exposure, contrast, and color with blending
      5m 37s
    5. Using blending shortcuts
      2m 4s
  17. 10m 26s
    1. Working with color correction in Camera Raw
      1m 21s
    2. Correcting color with the eyedroppers
      3m 11s
    3. Correcting color and tone with the eyedroppers
      5m 54s
  18. 36m 1s
    1. Using a Replace Color adjustment
      4m 14s
    2. Using Replace Color, Hue/Saturation, and masks
      5m 32s
    3. Replacing color with advanced masking
      7m 14s
    4. Selecting and modifying color with the Hue/Saturation eyedroppers
      2m 30s
    5. Using Color Balance to create vivid color
      4m 3s
    6. Modifying color with Selective Color
      5m 3s
    7. Changing color with Photo Filter
      4m 4s
    8. Making creative color changes with Color Lookup
      1m 44s
    9. Creative tip: shoot more
      1m 37s
  19. 35m 13s
    1. The modern equivalent of a traditional technique
      1m 40s
    2. Introducing two burn and dodge techniques
      7m 22s
    3. Burning and dodging with the Brush and Gradient tools
      4m 18s
    4. Dodging and reducing shadows in a portrait
      6m 0s
    5. Using selections, masks, and curves to change tonality
      7m 21s
    6. Improving a black-and-white landscape
      8m 32s
  20. 16m 9s
    1. The power of black and white
      4m 14s
    2. Converting a portrait to black and white
      4m 6s
    3. Converting a landscape to black and white
      4m 23s
    4. Adding grain and tone to a black-and-white image
      3m 26s
  21. 31m 57s
    1. Introducing Smart Filters
      3m 36s
    2. Applying Smart Filters
      6m 20s
    3. Creating a soft contrast effect
      6m 38s
    4. Changing focus with the Blur Gallery
      3m 40s
    5. Working with Tilt-Shift Blur
      3m 52s
    6. Creating a realistic lens flare
      2m 45s
    7. Adding light with the Lighting Effects filter
      5m 6s
  22. 12m 33s
    1. Using the Noise Reduction filter
      3m 46s
    2. Exploring advanced noise reduction using channels
      2m 49s
    3. Masking in noise reduction to a specific area
      2m 1s
    4. Reducing noise with Surface Blur
      3m 57s
  23. 48m 30s
    1. Cleaning before you enhance
      1m 2s
    2. Introducing the healing and cloning tools
      7m 22s
    3. Cleaning up the background of an image
      6m 21s
    4. Basic portrait retouching
      3m 15s
    5. Brightening shadows under the eyes
      4m 53s
    6. Brightening the eyes
      2m 30s
    7. Retouching selected areas
      5m 27s
    8. Using Content-Aware Fill to remove distractions
      5m 34s
    9. Moving a subject with the Content-Aware Move tool
      7m 54s
    10. Changing shape and dimension with Liquify
      4m 12s
  24. 24m 2s
    1. Using the Lens Correction filter
      6m 52s
    2. Reducing exaggerated distortion
      5m 16s
    3. Applying Free Transform to correct perspective
      3m 49s
    4. Correcting distortion with the Perspective Crop tool
      3m 45s
    5. Using Puppet Warp to correct perspective
      4m 20s
  25. 26m 48s
    1. Combining two photos with movement
      4m 12s
    2. Using two frames for a group photo
      4m 57s
    3. Creating a panoramic photo from multiple frames
      3m 37s
    4. Correcting distortion with the Adaptive Wide Angle correction
      7m 34s
    5. Cropping, filling in the gaps, and making final panographic adjustments
      6m 28s
  26. 27m 24s
    1. Working with Smart Sharpen
      6m 17s
    2. Using Unsharpen Mask
      4m 49s
    3. High Pass sharpening an image
      4m 47s
    4. Selectively sharpening the in-focus areas of an image
      3m 35s
    5. Selective sharpening with hand-drawn masks
      7m 56s
  27. 22m 44s
    1. Preparing images for the web and email
      4m 38s
    2. Sharpening for the web
      3m 5s
    3. Using Save for Web to create an optimized JPEG
      4m 26s
    4. Exporting images to Facebook or Flickr
      4m 46s
    5. Creating a web gallery
      5m 49s
  28. 26m 6s
    1. Desktop printing recommendations
      2m 46s
    2. Creating a PDF layout and contact sheets
      5m 56s
    3. Using a soft proof to visualize the print
      8m 0s
    4. Adjusting printer settings
      3m 43s
    5. Customizing the Print dialog box options
      5m 41s
  29. 32m 4s
    1. Opening up a video file in Photoshop
      7m 7s
    2. Editing a video clip and adding text
      5m 15s
    3. Using adjustment layers and adding an audio track
      4m 47s
    4. Creating a project with multiple clips
      4m 55s
    5. Adding a cross-dissolve fade and creating custom shortcuts
      4m 43s
    6. Customizing the workspace to review your project
      3m 2s
    7. Exporting a project
      2m 15s
  30. 3m 4s
    1. Exploring additional resources and ways to keep in touch
      2m 29s
    2. Goodbye
      35s

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