Straighten converging verticals
Fix perspective distortion and bust some dust
1 Counterac t tilt Browse to distortion_start.jpg in the Folders view to open it. Click the Straighten and Perspective Control icon in the Edit panel. Click on the Straighten tool icon and drag to draw a line that follows the tower’s tilted left wall. The shot will rotate to make the wall vertical. 2 Correc t distortion Drag the Perspective Control’s Vertical slider right to 6.9. This helps to make the top section of the building appear to lean towards the camera, counteracting the converging verticals. This adjustment mimics the effect of a tilt-shift lens. The walls will now appear more vertical. 3 Remove sensor spots When correcting distortion, the shot is cropped. This, happily, removes some of the sensor spots at the edges of the frame. Now click on the Retouch Brush icon. Increase the Size of the tip to cover any spots. Spray over a spot and it will be replaced with clear blue sky.