Electronic viewfinder EVF (electronic viewfinder). Power supply is needed at work, which is similar to LCD display screen. Its main function is to watch the scene when shooting for digital cameras and digital camcorders, that is, to view the scene. Usually, the content displayed on the LCD viewfinder of a digital camera can be displayed through EVF.
The electronic viewfinder used in general digital equipment is divided into black and white and color, and the size is about 0.25~0.5 inch (the area is about 36~ 169mm2).
Electronic viewfinder is to put a micro LCD in the viewfinder. Due to the shielding of the fuselage and eye mask, external light can't shine on this miniature. The field of view of electronic viewfinder is much larger than that of optical viewfinder. For example, the evf field of view of Sony dsc-f707 reaches 99%. Electronic viewfinder is also more practical, not only cheaper, but also can be used in any ambient light. The electronic viewfinder can display the whole scene to be shot, and can display shooting information such as aperture and shutter speed, but in addition, it can also display the camera menu, which other viewfinders can't do.