How to look at the main parameters of a digital camera

Parameters are not a problem now, a few years ago you can meet everyone's needs, mainly in the difference in brand, depending on what brand you like.

1. Photoreceptor:

The size of the size, such as 1, 1 2, 1, etc., the amount of light is good.

The level of technology, such as the use of a back-illuminated sensor, is twice as much light as a sensor of the same size.

2. Lens quality:

The size of the lens, the more light intake.

Lens resolution, high resolution, ** clearer, such as 1960*1080 lens color reproduction, aberration, etc.

Lens zoom, generally speaking, the greater the zoom factor, the worse the sharpness.

3. Image processor:

The quality of the image processor also directly affects the quality of the **.

4. Electronic devices:

Not as good as electronic autofocus, auto**, shutter speed, etc.

5. Others, the higher the ISO, the faster the sensitivity, such as ISO200 is faster than ISO100.

The core of the camera is the size of the sensor CCD or CMOS size. The larger the sensor, the clearer the image and the better the image quality. Large sensors such as the Canon S95 G12 are professional digital cameras among card players.

Focal length, shutter, pixels, features.

Here's a brief introduction:

The smaller the wide angle, the better, the smaller the camera's field of view, the wider the view, and the 25mm wide angle is good at this price point.

Light change is optical zoom, which relies on optical principles to enlarge objects without damaging image quality, while digital zoom is an enlargement that damages image quality, which has no practical significance. At this price point, 10 times the light change is normal.

The aperture determines the amount of light transmitted, the larger the f-number, the smaller the aperture, the smaller the f-number, the larger the aperture, and the amount of light transmitted and the image quality of the shutter team in photography have a great impact. According to the above data, it can be seen that the effect of the camera at the wide-angle end, the telephoto end, and the wide-angle end is good, and the telephoto end is impressive, even after 10x light change, it can still ensure a high imaging effect.

In the case of ensuring that the phase and dispersion are good enough, the aperture aperture should be considered.

In terms of sensors, the current technology should be back-illuminated as much as possible. The amplification circuit of the CMOS may read out faster.

Look at the quality and size of the sensor, the lens brand and optical zoom, aperture, shutter speed followed by pixels, and then the screen, chassis, and battery. The most important thing is the brand and model of the camera. You get what you pay for.