What fill light is used to take pictures of the baby?

It's best not to take pictures of the baby with a flash to avoid injury. You can fill your face with reflectors. If there are no conditions, you can make a reflector yourself. Find a flat object at home, such as a large cardboard box, a separate screen window, a rolling panel, etc. Just stick a layer of white paper on it, adjust the angle and reflect the light to the place where it needs to be filled. If the light is still insufficient, you can directly illuminate the white paper with light sources such as desk lamps and flashlights to improve the reflective effect.