Where are the av files and TV files of Leica camera set?

The AV file mainly controls the aperture size, and the depth of field is controlled by the aperture size. Many times, the large aperture is used to shoot portraits, small and fresh sketches, or to highlight the subject for the softness of Jiao Wai when shooting flowers and still life without a macro head. Commonly used in portrait photography and landscape photography.

In TV mode, we are shooting some fast moving objects because of the fixed shutter speed. In order to make them appear in the forbidden state, or when we need to know how long it will take, we choose shutter priority and let the camera choose the appropriate aperture. So it is often used to shoot sports scenes, such as fireworks and birds.