focal length

Focal length If you look at the camera's English specification, then the number behind it is usually its focal length, which is the focal length. Such as f = 8-24mm, 38-115mm (35mm equivalent), refers to the focal length of this camera is 8-24mm, while the angle of view of the diagonal conversion equivalent to the traditional 35mm camera 38-115mm focal length. In general, the 35mm camera's standard lens focal length is about 28-70mm, so if the focal length is higher than 70mm, it means that the telephoto effect is supported. If it is lower than 28mm, it means that there is a wide-angle shooting ability.

The focusable range is an extension of the focal length, usually divided into the general shooting distance and the close-up distance. The camera's general shooting distance is usually marked from a certain centimeter to infinity, while the products of the advanced class design often provide close-range. Take a macro (macro) to compensate for the problem of inability to focus in normal shooting mode. Some cameras put great emphasis on the magical ability to support 1 cm of close-up, suitable for shooting fine objects.