Wednesday, December 11, 2013

The golden section, or golden ratio, hit for a long time fantasy of artists and lovers of art histo

The golden section condiment cups with lids and photography | Phototutorial - Photography Course Online condiment cups with lids
Photography course basic elements of photographic technique Equipment How to Photograph ... Light House Care and Maintenance Photography - Quick Answers photographic condiment cups with lids techniques: condiment cups with lids the photos explained Photography with smartphones and tablets photos of readers
The golden section, or golden ratio, hit for a long time fantasy of artists and lovers of art history as it seems to be the basis of the composition in many paintings, sculptures condiment cups with lids and works of architecture. This occurrence demonstrates, condiment cups with lids according to many, a particular aesthetic value of the golden condiment cups with lids section: works made taking into account the golden section appear more beautiful and harmonious as the human brain would naturally predisposed to find this particular pleasant proportion.
Particularly interesting, then, is the fact that in nature you can find this ratio in many elements of the mineral, vegetable and animal, the shape of galaxies to that of the nautilus shell, condiment cups with lids the arrangement of sunflower seeds, the proportions of the human body ... (See examples in the following links: the golden section in plants, the golden ratio in the human body, DNA and golden spiral, golden ratio in the animal world). So much so that some see the golden section a kind of "signature of God."
Of course, many scholars warn that the alleged presence of the golden section in many works of art, in fact, the proof of facts, it would not be confirmed, as the result of approximations and measurements that depart from points arbitrarily chosen by the supporters of this theory.
If you take a segment (c) and is divided into two unequal lengths, (a) and (b), we get the golden section when the longest, (a) is the whole segment as the shortest condiment cups with lids stretch , (b), is longer than (a).
The number 1.61803398874989484820 condiment cups with lids ... is also known as the golden ratio and φ is called.
Well, their particular property is that if we divide two successive numbers in the sequence, plus the two numbers are high, the closer we get to the golden number condiment cups with lids with greater precision: 1.61803398874989484820 ...
The mathematical properties of the golden ratio are significant and interesting. For example, the square and the reciprocal of the golden ratio have the same exact same number of decimal places.
Because of these special mathematical properties and the fact that we find in many elements of nature, according to many, this number would be the key to a mysterious and almost magical condiment cups with lids harmony.
Starting from a segment condiment cups with lids divided into two according to the golden section, it is possible to build the golden rectangle simply by drawing its shorter side of length equal to that of the greater length of the segment, as seen in the image below:
and then join with quarters around the corners of the squares adjacent to the golden rectangles, we obtain a Fibonacci spiral, condiment cups with lids which is very close to the golden spiral, condiment cups with lids ie the spiral growth factor b equal to the golden ratio φ:
But how the golden ratio is useful to the photographer? It may have a certain importance in the composition, ie, in the choice of the arrangement of the main elements within the photograph.
In fact, let's face immediately, until a short time ago the regular photographer was unable to refer to the golden section but had to settle for a simplification that is constituted by the rule of thirds. It ideally consists in dividing the frame into nine rectangles, using lines that divide the sides of the rectangle into three equal segments, and have the strong points of the image in the intersections of these.
Grid based on the rule of thirds, that is to divide the frame using the lines that divide exactly into three equal sides of the rectangle. The strong condiment cups with lids points are located at the intersections of the lines.
The difficulty of applying during shooting the golden section to photography was due to the fact that, until recently, most of the cameras were not equipped with scopes sighted that serve as guidance. condiment cups with lids There was limited, therefore, condiment cups with lids to have the image on the strengths of the third frame, calculated roughly by eye, framed by the photographer. In fact for some, and for almost all SLR cameras and professional medium-format view camera, were available as an option, special slides which divided the frame based on the rule of thirds, or more rarely, based on the golden section.
Today, many of the live-view cameras are equipped with guidelines drawn according to the rule of thirds, and some even according to the golden section. There is no doubt that in the future

No comments:

Post a Comment