Tidy your rooms!
George Cairns explains how to correct lens distortion using Camera Raw
Discover the quick and easy way to correct lens distortion using Photoshop
In Project 1 (page 48) we used a wide-angle lens to reveal more of an interior, but you may find the lens introduces some distortion. The vertical lines in your interior may curve slightly at the edge of the frame, due to the way the light is warped as it travels through the lens. This pincushion (curving inwards) or barrel (curving outwards) distortion can be distracting, as our eyes see walls as being perfectly straight. In a photograph the interior’s walls may also converge slightly towards the top of the frame, instead of running parallel with the edges.
Fortunately, Photoshop CC’s Camera Raw workspace has all the tools you need to quickly and easily counteract geometric distortions such as curved lines. It can also counteract perspectival distortion and get your interior’s verticals to look truly vertical. You can even correct distortion produced by user error and make tilted horizons run parallel with the bottom of the frame. Finally, to correct distortions Camera Raw has to warp the image and this can cause compositional changes. We’ll show you how to avoid cropping out key details at the edge of the frame when correcting distortion.