What effect will the long focal length of photography have on the photos?

First, the angle of view is small. Therefore, the spatial range of the shooting scene is also small, and the shot image is larger than the standard lens at the same shooting distance, which is suitable for shooting the details of the distant scene and shooting the subjects that are not easy to get close to.

Second, the depth of field is short. So you can highlight the subject in a messy environment. However, this brings some difficulties to accurate focusing. If the focus is slightly inaccurate when shooting, the subject will be blurred.

Third, the perspective effect is poor. It has the characteristics of obviously compressing the spatial depth distance and exaggerating the prospect.

When using a long focal length, it is generally used for shooting a distant view.