Photographers and artists alike adhere to the "rule of thirds," which tells us that photos (and videos — just watch TV and movies for proof) look better when the subject is off center, aligned about a third of the way from left, right, top, or bottom of a grid composed of two horizontal and two vertical lines (see the image to the left). According to the rule of thirds, the most visually interesting parts of the photo should fall along one of the lines, or at one of the points of intersection.
Many seasoned photographers can imagine invisible grid lines when composing a shot, but your iPhone makes the task easy for you: Turn on the Grid feature by tapping Settings > Photos & Camera > Grid. This overlays a three-by-three grid on your frame, letting you apply the rule of thirds effortlessly, even if you're a beginner.
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