Rule of Thirds Composition and Exceptions: Use Composition Guidelines as a Starting Point
Explain that the rule of thirds grid and horizon position can be used as compositional references, and practice judging frame selections by comparing centered versus offset framing; make it clear that these are adjustable guidelines. Not the emotional conclusion of leading line details, symmetrical psychological effects, picture-in-picture, negative space proportions, or sloping horizon lines.
Use the rule of thirds as a reference for positioning
Composition is choosing how to frame your shot. You can imagine a grid of three rows and three columns on the framing screen, place the subject or important elements near the grid lines or intersections, and then compare different positions. The grid is used to assist observation and does not require the subject to fall exactly on a certain point. 〔G-COMP-01, G-COMP-02〕
Compare centered and offset framing
Try both centered and offset framing of the same scene to see which one better suits what you want to emphasize. The rule of thirds is just a starting point; Adobe gives examples of deliberate deviations from the rule of thirds, such as centered subjects. Whether or not to use it depends on the specific scene, and there is no single rule that must be applied to every photo. 〔G-COMP-03, G-COMP-04〕
Adjust the horizon according to the screen content
When shooting landscapes, you can compare the effects of placing the horizon above, below, or near the center line of the frame. Nikon recommends placing it above or below the center line in most cases; if the subject contains reflections, centering the horizon may also allow the scene above to correspond to the reflection below. Just think of it as a comparable compositional choice. 〔G-COMP-05〕
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