What is macroscopic?

What Does macroscopic Mean

The adjective macroscopic is used in the field of biology to describe what can be observed without the need to use a microscope. The macroscopic, therefore, is detectable with the naked eye, as opposed to the microscopic.

The macroscopic features can thus be viewed without the aid of tools or instruments . In any case, it must be taken into account that a macroscopic phenomenon can be determined by a microscopic one.
Suppose that a person has a visible injury that has no apparent cause, since it occurred spontaneously. A doctor, performing a gross examination of the area in question, soon discovers the wound. However, the professional decides to extract a skin sample from the area to perform a microscopic study because he needs to determine the origin of the problem. Thus he discovers that the lesion arose from an infection caused by microbes, which are organisms that can only be detected through a microscope. Ultimately, the injury in this individual is macroscopic, but its causes are microscopic.

The cells , on the other hand, usually have a microscopic size. But when they come together in a certain way, with a regular order and jointly developing a certain function, they create a tissue that can be seen with the naked eye: the cell is microscopic, the tissue is macroscopic. When looking at the tissue through a microscope, the tiny elements that make it up just appear.
Similarly, bacteria are microorganisms that are seen under a microscope, although their effects on other organisms are often macroscopic.
In the field of photography, the term macroscopic is used to refer to the branch of this discipline that deals with images of very small objects and creatures on a scale greater than their actual size. In these images we can see insects, lichens and tiny objects as if they were giants. Macro photography can only be achieved with a special lens, called a macro, which has been specially designed to capture an image with a minimum focus distance (that is, to be able to take photos up close). The macro lens allows you to capture a small object at its actual size or on a larger scale.
One of the problems with macro photography is depth of field . The design of the lenses only allows them to capture a small area of ​​the depth of the photographed object, so the sharpness is not even: that is, one part of the object is very sharp (when in focus) and the other is blurred (because is out of focus radius). Some cameras are prepared to correct this problem, but it is very difficult to achieve total sharpness .

For a few years now, some photographers have been working with Macropod, which is a lens system that allows completely clear photos to be taken. By capturing multiple images of the object, each with a different depth of field, and combining these in post-production, impressive detail can be achieved in very tiny beings and objects. In this way, capturing the antennae of a wasp will not prevent us from appreciating the rest of its body, in the same way that we can photograph an insect without missing any detail of its body. Without a doubt, this is a fabulous companion for any lover of gross photography.

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