Shooting skills of meteor shower?

Method of shooting starry sky: tripod and SLR camera (preferably wide-angle lens). Find a dark space around, with moonlight or the direction of the milky way. Manual M file, lens MF file, the focal length is infinite (usually turned to the left) and the aperture value is between F2.8-F6 and F6. Shutter exposure is between 10S-30S and ISO2000-6400, and it is constantly adjusted according to your camera lens. I often like to use 20S F4 ISO4500.