Adobe

Correct lens distortions in Camera Raw


    About lens corrections

    Camera lenses can exhibit different types of defects at certain focal lengths, f-stops, and focus distances. You can correct for these apparent distortions and aberrations using the Lens Corrections tab of the Camera Raw dialog box.

    Vignetting causes the edges, especially the corners, of an image to be darker than the center. Use controls in the Lens Vignetting section of the Lens Corrections tab to compensate for vignetting.

    Barrel distortion causes straight lines to appear to bow outward.

    Pincushion distortion causes straight lines to appear to bend inward.

    Chromatic aberration is caused by the failure of the lens to focus different colors to the same spot. In one type of chromatic aberration, the image from each color of light is in focus, but each image is a slightly different size. Another type of chromatic artifact affects the edges of specular highlights, such as those found when light reflects off of the surface of rippled water or the edges of polished metal. This situation usually results in a purple fringe around each specular highlight.

    Original image (top), and after fixing chromatic aberration (bottom)

    Correct image perspective and lens flaws automatically

    The options in the nested Profile tab of theLens Corrections tab of the Camera Raw dialog box correct distortions in common camera lenses. The profiles are based on Exif metadata that identifies the camera and lens that captured the photo, and the profiles compensate accordingly.

    Adobe recommends

    Have a tutorial you would like to share?

    Lens correction and noise reduction with Adobe Camera Raw

    Russell Brown
    Russell Brown demonstrates how to apply lens corrections and noise reduction in Camera Raw 6 (05:55).
    1. In the nested Profile tab of the Lens Correctionstab, select Enable Lens Profile Corrections.
    2. If Camera Raw does not find a suitable profile automatically, selecte a Make, Model, and Profile.
      Note: Some cameras have only one lens, and some lenses have only one profile. The lenses that are available depend on whether you’re adjusting a raw or a non-raw file. For a list of supported lenses, see the support article Lens profile support | Lightroom 3, Photoshop CS5, Camera Raw 6. To create custom profiles, use the Adobe Lens Profile Creator.
    3. If desired, customize the correction applied by the profile by using the Amount sliders:
      Distortion
      The default value 100 applies 100% of the distortion correction in the profile. Values over 100 apply greater correction to the distortion; values under 100 apply less correction to the distortion.

      Chromatic Aberration
      The default value 100 applies 100% of the chromatic aberration correction in the profile. Values over 100 apply greater correction to color fringing; values under 100 apply less correction to color fringing.

      Vignetting
      The default value 100 applies 100% of the vignetting correction in the profile. Values over 100 apply greater correction to vignetting; values under 100 apply less correction to vignetting.

    4. (Optional) To apply your changes to the default profile, choose Setup  > Save New Lens Profile Defaults.

    Correct image perspective and lens flaws manually

    Transform and vignette corrections can be applied to original and cropped photos. Lens vignettes adjust exposure values to brighten dark corners.

    1. Click the nested Manual tab of the Lens Correctionstab of the Camera Raw dialog box.
    2. Under Transform, adjust any of the following:
      Distortion
      Drag to the right to correct barrel distortion and straighten lines that bend away from the center. Drag to the left to correct pincushion distortion and straighten lines that bend toward the center.

      Vertical
      Corrects perspective caused by tilting the camera up or down. Makes vertical lines appear parallel.

      Horizontal
      Corrects perspective caused by angling the camera left or right. Makes horizontal lines parallel.

      Rotate
      Corrects for camera tilt.

      Scale
      Adjusts the image scale up or down. Helps to remove empty areas caused by perspective corrections and distortions. Displays areas of the image that extend beyond the crop boundary.

    3. Under Chromatic Aberration, adjust any of the following:
      Fix Red/Cyan Fringe
      Adjusts the size of the red channel relative to the green channel.

      Fix Blue/Yellow Fringe
      Adjusts the size of the blue channel relative to the green channel.
      Zoom in on an area that contains very dark or black detail against a very light or white background. Look for color fringing. To more clearly see the color fringing, press Alt (Windows) or Option (Mac OS) as you move a slider to hide any color fringe corrected by the other color slider.

      Defringe
      Choose All Edges to correct color fringing for all edges, including any sharp change in color values. If choosing All Edgesresults in thin gray lines or other undesired effects, choose Highlight Edges to correct color fringing only in the edges of highlighting where fringing is most likely to occur. Choose Off to turn off defringing.

    4. Under Lens Vignetting adjust the following:
      Amount
      Move the Amount slider to the right (positive values) to lighten the corners of the photo. Move the slider to the left (negative values) to darken the corners of the photo.

      Midpoint
      Drag the Midpoint slider to the left (lower value) to apply the Amount adjustment to a larger area away from the corners. Drag the slider to the right (higher value) to restrict the adjustment to an area closer to the corners.

    Legal Notices   |   Online Privacy Policy