Everything about zoom in cameras

There are several types of camera zoom. People who are far from the art of photography, and those who are new to this business, have little understanding of what this concept means.

The word zoom in translation into Russian means "image enlargement". When choosing a camera, most people pay attention to the matrix, more precisely, to the number of pixels. But this parameter cannot be called the main one. The key selection criterion is optics. The zoom function is very important.

If possible, consult with a professional photographer to see which option is best. Before buying a camera, explore the different zoom options. This is one of the main characteristics of the lens, it depends on the focal length. FR is indicated in millimeters - this is the distance from the center of the lens to the focal point.

Sellers in stores always say that zoom shows how many times a technique is able to magnify a subject. The FR of 50 mm is considered optimal. For example, if the focal length is specified as 35-100mm, the zoom value will be 3. This figure is obtained by dividing 105 by 35.

The increase in this case is 2.1. 105 mm must be divided by a distance that is comfortable for the human eye - 50 mm. For this reason, the magnitude of the camera's zoom does not yet tell how much it is realistic to enlarge the subject. The following types of zooms stand out.

1. Optic.
2. Digital.
3. Superzoom.

In the first case, the subject being filmed approaches or recedes due to the displacement of the lenses in the lens. Other characteristics of the camera do not change. The pictures will be of high quality. The optical type of zoom is advised to be used during shooting. When choosing a technique, focus on this value.

Many photographers are ambivalent about digital zoom. When it is used in the processor, an important piece is removed from the picture, the image is stretched over the entire area of ​​the matrix. There is no real magnification of the subject. A similar result can be achieved in a computer program by enlarging the photograph. But an increase is fraught with a decrease in the destruction of the cut out part.

A large number of superzoom cameras are on sale. Such equipment is called ultrazoom. The optical zoom in such camera models is more than 50x.

In cameras, optical zoom plays a key role. When buying equipment for photography, always look at this value. It is difficult to give precise recommendations for purchasing the camera that gives the best picture. The quality of the image is influenced not only by the zoom and the number of pixels, but also by the skill of the photographer, the features of the objects being shot.

It is recommended to give preference to the optical zoom, because the differences are still present. When choosing equipment, look at the focal length of the lenses. Before buying a camera, decide what kind of shooting will be done with it. Based on this, you need to make a decision.

If you need the camera to take pictures of friends and family, choose a model with a wide angle of view. In such cases, a large zoom is not necessary. A value of 2x or 3x is enough to shoot at birthdays and other home holidays. If you plan to shoot natural beauty, give preference to a camera with a zoom of 5x or 7x.When shooting rivers and mountains, hold the camera firmly and avoid distortion and blur.

When there is a need to take close-up shots, it is recommended to get closer to the objects instead of increasing the zoom, otherwise the perspective will narrow, the image will turn out to be distorted. For long-distance shots, a 5x or 7x zoom is required, it will allow you to preserve all the details.

It is recommended to turn off the digital zoom in the camera settings during the shooting. You can't replace building a composition by zooming in or out of objects - learn this rule. Use the digital zoom with extreme caution. Its use is permissible only in cases where the matrix has a high resolution. If necessary, it is worth taking a picture with the object closer. Understanding what zoom is will make it easier to use this option.

An overview of the zoom camera in the video below.