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The physical size of the matrix of the camera and what it affects

The camera matrix is ​​a plate made in the shape of a rectangle; its main function is to collect light.

The main characteristic of photomatrix is ​​its size. As a rule, it is indicated as a fraction in inches.

The larger the size, the more light and less noise will be in the picture. And consequently – more shades will turn out. Thus, size is a key parameter not only of the matrix, but also of the entire camera.

The size is marked with two different options:
Format designation;
In inches diagonal sensor.
The format is just the name of the matrix, which has a certain size.

Inches appeared at the time of measuring the area of ​​the picture on the tubular TVs. Their record looks, for example, like this: 1 / 2.7 “.

There is no point in trying to calculate the physical size of the diagonal and the size of the sides. Such marking is nothing more than a designation, without any mathematical force.

The main thing is to learn how to determine which of the diagonals is larger. For example, 1 / 1.8 ”is significantly more than 1 / 2.7”.

The physical size of the matrix of the camera and what it affects

What parameters are influenced by the size of the photomatrix?
The larger the camera matrix, the lower the image noise.

This is explained by the laws of physics, according to which, the more light falls on the surface, the less it heats up. In view of this, both the error in quantization and noise are less.

Under the same conditions, the picture becomes clean and detailed; Also, unnecessary information is removed, which is caused by interference.

There is a clearer definition: with the same number of pixels and one technology, the larger the matrix size, the lower the noise in the photo will be when shooting with poor lighting.

The photo will be the least of all that interferes with viewing.

Example: if you intend to take pictures at dusk, it is preferable to have a large matrix camera with you.

In small matrices, the insulating elements between the pixels are small, which entails:

Fast and strong heat, adversely affecting all types of electronic devices;
The deterioration of the signal-to-noise ratio;
A significant increase in noise in the resulting image, compared with devices that have large photomatrix.
The physical size of the matrix of the camera and what it affects
Dynamic range
The dynamic range is wider for devices with large matrices.

Color depth
This parameter determines how small color changes the camera can distinguish. A large matrix guarantees a greater color depth.

And with an impressive color depth, the tiniest transitions will look quite natural and organic; much more will be recorded information about halftones.

This effect is well noticeable in almost monotonous landscapes.

Camera Dimensions
Despite the fact that the depth of the sharply depicted space and the viewing angle are not directly dependent on the size of the photomatrix, they nonetheless change with it.

This is because in order to get photos on the same scale, it is necessary to adjust other parameters:

Focal length;
The distance to the subject.
That is, on devices with a small matrix, you have to use one of the two methods listed above.

But on cameras with large matrices it is easier to get “blurry” pictures.

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