TRY DOUBLEDISTANCE FOCUSING
Learn an easy technique for capturing front-to-back sharpness
1 COMPOSE YOUR SHOT
At this stage, don’t concern yourself with any technical considerations; concentrate purely on the aesthetic and worry about sharpness later.
2 CALCULATE DISTANCES
Decide the nearest part of the scene that needs to be sharp – here, the first groyne post – and calculate the distance from that to the image plane.
3 CHOOSE A FOCAL POINT
Double the distance and choose a focal point that is that distance from the camera. Here, it’s easy: the second post along the groyne.
4 FOCUS PRECISELY
Focus on the point. If using AF, make sure the AF point is placed precisely where you want it. Use back-button or manual focus to ensure focus is locked.
5 REVIEW THE IMAGE
Zoom in to 100%, check that the foreground is sharp and then check the background. Re-shoot with adjusted focus if necessary.
6 FINAL IMAGE
Linear perspective creates the impression of depth and extensive depth of field with front-to-back sharpness enhances the effect.
AFTER DOUBLE-DISTANCE FOCUSING the same post but from the final image, in which double-distance focusing was applied. the post is now clearly within the depth of field and is absolutely pin-sharp
BEFORE FOCUS ON THE BACKGROUND as this crop of the image, showing the foreground post, clearly demonstrates, focusing on the background does not generate sufficient depth of field. it is outside the zone of sharpness and is noticeably soft