The Macro Index In Photography
Macro photography is a photographic technique that allows to obtain images of tiny subjects through strong magnification ratios.
So reads the first sentence of Wikipedia that for large lines, manages to squeeze in a few words what is macro photography.
Macro photography, more specifically, is the photo of the very small. A pistil of a flower, a small insect, the head of a pin, a drop of water are some of the classic subjects of this photographic technique. Tiny, though http://akusaraprosound.com, is made it big these subjects are in fact taken in order to occupy the entire frame, performing a magnification up to 4 or 5 times the actual size of the subject.
In this special, we will analyze various aspects of macro starting from accessories, from lenses, until concluding with shooting techniques and useful tips on capturing some great macro photographs.
We change the camera distance to the subject so as to maintain the same final dimension of the subject itself and we keep fixed the opening between the two shots. The two photographs will present the same depth of field even if, to be deeply varied, will be the perspective of the image and the amount of background visible. Obviously to use a lens with a longer focal length can has, as advantage, the possibility to work at a greater distance from the subject and then minimize disturbances as drops of water, insects or even grains of dust which, with a focal length shorter, may be visible in the photograph.
Circle of confusion
A lens, if it was perfect, would focus each point in the image captured on a sensor point. If it was perfect, in fact. In fact, thanks to the fact that the subject is never plane and then the light rays travel more or less space to reach the sensor, a point is focused into something larger than a point itself, or in a circle. This circle, if of very small size, is interpreted by the eye the same way as a point. Point that, to a certain size, however, it will be seen as a circle, and then you will notice a blurred effect on our photo. The circle whose maximum size means that the same be interpreted as a period is called the circle of confusion. The size of the circle of confusion is directly linked to the ability of our eye to distinguish the smallest of circles the guideline minimum perceptible dimension, as related in the article written, it is equal to 0.03 mm radius circle.
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