Non-professional photographers, who only travel to take pictures, have the function of blurring distant scenery. What camera should they choose?

The larger the aperture, the smaller the depth of field. On the contrary, the smaller the aperture, the greater the depth of field. Using a large aperture can ensure that the foreground and close-up are blurred except the focus. If you focus on a nearby object, the foreground will appear blurred.

It is difficult for ordinary digital cameras to achieve SLR effect.

But the main reason is not that the aperture of the lens is not large enough, but that the size of the sensor is too small, and the aperture is useless.

At present, it is not uncommon that the aperture of some high-end digital cameras reaches F 1.8 (the smaller the value, the larger the aperture), but it is impossible to blur the background greatly because the sensor size is too small. From a technical point of view, if you want to blur the background, you must choose a model with a large sensor area and a large aperture. Even so, if you want to blur the SLR to that extent, it is impossible. You must choose a higher-end model with a large sensor.

If this effect must be achieved on ordinary digital cameras, it is suggested to consider models with software blur background function, and similar effects can be obtained through software processing, which is better than nothing.

From the perspective of photography skills, the closer the camera is to the subject, the farther the subject is in the background object, the longer the focal length of the lens and the larger the aperture, the stronger the background blur effect will be, and the SLR can achieve the blur effect.