Last week we started to review the Lens Correction Panel in Adobe Lightroom 3. Most of the time, simply clicking the option to "Enable Profile Corrections" is enough to counter any lens distortion in your image. On occasion, you may need to work a little harder so this week we'll look at the "Manual" options to help you get the most control possible in your assault on lens issues.
At this point, I could select the Crop option from under the histogram (or press the "R" key) and then use the Angle tool to mark the horizon line to straighten the image. As we're talking about the Lens Correction Panel, however, let's look at an alternate method.
- Distortion - Just like the slider in the Profile options, the Distortion slider attempts to correct barrel and pin cushion (bend, bulge) issues in your image.
- Vertical - Imagine that a fixed axis runs through the horizontal center of your image. Moving the slider left or right will vertically pivot your image on that axis.
- Horizontal - This time that imaginary axis runs vertically through the center of your image. Moving this slider pivots your image on that axis.
- Rotate - Does exactly what it says. This slider will turn your image left or right from a fixed point in the center of your image.
- Scale - Drag the slider to the right to "blow up" your image or to the left to "shrink" it.
- Constrain Crop - With this box checked, your image will automatically be cropped based on the selections of the other sliders to prevent uneven or warped edges.
If you've never had the pleasure of trying to correct lens distortion prior to the introduction of these new tools within Adobe Lightroom 3, consider yourself lucky. With a little experimentation and a handful of sliders, Lightroom can once again save an image otherwise destine for the Recycle Bin.
Do you have any images in your catalog that suffer from lens distortion? If so, give these tips a try and let me know how things turn out.
Until next time, keep click'n.