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The basics

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198 ADVANCED PHOTOSHOP ELEMENTS 5.0 FOR DIGITAL PHOTOGRAPHERS<br />

DARKROOM TECHNIQUES ON<br />

THE DESKTOP<br />

7.18 Correcting lens problems<br />

Suitable for Elements – 5.0, 4.0, 3.0, 2.0, 1.0 | Diffi culty level –<br />

Intermediate | Resources – Web images 718-1, 718-2 | Menus<br />

used – Filter, Image<br />

<strong>The</strong> following techniques are designed to correct two<br />

of the most common lens problems:<br />

• Barrel distortion and<br />

• Pincushion distortion.<br />

As we have already seen in technique 7.05 the new Correct Camera Distortion fi lter that ships<br />

with Photoshop Elements 5.0 can quickly and easily correct perspective problems in your<br />

photos, but this isn’t the end of the feature’s abilities. <strong>The</strong> Remove Distortion slider is designed<br />

specifi cally for removing the barrel distortion or pincushioning effects common with some<br />

lenses. For best results this slider can be used in conjunction with the Rotate, Perspective<br />

and Vignetting controls to fi ne-tune the look of your photo. This feature can also be used to<br />

intentionally add the effects of each of these lens problems in order to produced bloated or<br />

pinched photos.<br />

Book resources at: www.adv-elements.com<br />

<strong>The</strong> Remove Distrortion control >><br />

Moving the slider to the right removes the<br />

effect of pincushioning by causing the<br />

picture to bulge. Sliding the control to the<br />

right pinches the picture inwards correcting<br />

barrel distortion.

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