Composing a Photograph on Your iPhone with the Rule of Thirds
Your iPhone can capture a detailed photograph, but how well the photo is composed is up to you. One common photo-composition trick is called the Rule of Thirds. With the Rule of Thirds, you imagine lines that divide your photo into thirds both horizontally and vertically. The four "power points" are at the intersections of the lines. Put the subject in your scene at or near a power point of the photo.