24-70 is the most suitable single-shot and single-mirror choice for wedding follow-up. If the light is sufficient, the sharpness and depth of field of the aperture receiving F4 or F5.6 are good. If you take a close-up, it is suggested that you can slow down the shutter speed when you fully open F2.8 makeup, but it is best not to be lower than1/60; F8-F 1 1 Used to shoot the aperture of the motorcade, and adjust the ISO according to the light. If the wheel is not blurred and dynamic, the shutter speed should be as high as possible. In order to ensure the normal exposure of the ceremony site, the shutter speed should not be lower than1100, but if the LED screen background is used, the shutter speed should not be higher than1125, so the aperture should be fully opened. For the big photo after the ceremony, the aperture must be closed, about F8. At this time, negotiate with the wedding site supervisor to keep the face bright, otherwise two lights must be flashed for the big photo. ...