Traditional Culture Encyclopedia - Photography and portraiture - In the photographic composition method, the golden section is relatively rigid.
In the photographic composition method, the golden section is relatively rigid.
First of all, the most basic introduction-"golden section" is a geometric formula invented by the ancient Greeks, and the composition form that follows this law is considered to be "harmonious". The significance of this rule lies in providing a reasonable geometric line segment when appreciating an image work.
For many painters and artists, "golden section" is the guiding principle that they must deeply understand in their current creation, and photographers are no exception.
Principle 1:
As shown in Figure A, the formula of "golden section" can be deduced from the square. Divide the bottom of the square into two halves, take the midpoint X, and make a circle with X as the center and XY as the radius, and the intersection point with the bottom straight line is Z.
This expands the square into a rectangle with a ratio of 5:8 (Y' is the "golden section"), and A:C = B:A = 5:8. Fortunately, the ratio of 35MM film format is very close to this ratio of 5:8 (24:36 =5:7.5).
Principle 2:
Figure B: Through the above deduction, we get a rectangle that is considered to be perfect. Connect the upper left corner and the lower right corner of the rectangle into a diagonal line, and then make a line segment from the upper right corner to the Y' point (golden section point, see Figure A), and cross the diagonal line, thus dividing the rectangle into three different parts.
Now that the golden section has been completed in theory, you can roughly arrange the scene you want to shoot according to these three areas, or flip the schematic diagram 180 degrees or rotate it 90 degrees for comparison.
Trinity rule
"Trigonometry" is actually just a simplified version of "Golden Section". Its basic purpose is to avoid symmetrical composition, which usually puts the subject in the center of the picture, which is often annoying.
In figures C 1 and C2, we can see that there are four points related to the golden section, marked with a "ten" line. There are two basic ways to avoid symmetry by using the "trisection":
First of all, we can divide the picture into two areas, accounting for 1/3 and 2/3 respectively.
The second type: directly refer to the four "golden section" points in the figure. For example, suppose we see a very charming scenery, but we lack a subject with beautiful geometric structure, then the photo taken will only be an empty and tasteless scene. What shall we do? Try to find an object in sharp contrast to this monotonous environment.
And put this object in one of the "ten" points in C2 Map, so that the photo has an obvious anchor point and guides the audience's eyes to the whole landscape.
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