Fill flash: When shooting outdoors, if there is a shadow on the subject or the face of a person, the easiest way to deal with it is to use fill flash. This method, as it literally means, is to add a small amount of artificial light to the shadow area. When shooting outdoors, you only need to turn on the flash and leave the rest of the work to the camera.
Use diffuser: diffuser can weaken the "hardness" of light. It can soften the light and take better pictures. All external flashes can use a diffuser, and most digital SLR cameras' on-board flashes can also be used. The diffuser is cheap, but very practical. My own diffuser is made of a white milk carton and fixed to the flash with a rubber band.
Jump flash: If you have used an external flash, you should have noticed that direct hard light will ruin the beauty of the photo. The solution to this problem is simple. The head of most external flashes can be rotated to a certain angle. Point the lamp head towards the ceiling, and the light reflected by the ceiling is also softened. There is only one situation that is a bit problematic-the ceiling is colored. If the ceiling is not white, the light will also take the same color. So take a trial shot before shooting to see if the effect is acceptable. Wooden ceilings will produce warm light, which is often better.
Off-camera flash: Off-camera flash is the only way to take great photos without using a diffuser. Off-camera flash cords are very cheap, but very useful. Install the flash on the hot shoe of the flash trigger cable and place it on the left or right side of the camera, so as to avoid direct light from causing harsh effects. You can mount the off-camera flash on a tripod or special light stand.