The sharpness of 24- 105L is better than that of 24-70, and the focal length is above 100. Disadvantages are serious distortion and dark angle, and small aperture, but these are not important for wedding photos (don't think that the larger the aperture, the better).
Wedding photography is not a personal creation. It's not up to you to think about it slowly, change the lens to find a seat, especially on location. The environment is out of your control. 24- 105 This zoom lens is the most suitable. The scene you want to shoot is mainly full-length and bust, supplemented by close-up portraits. 24 is wide enough, 105 is long enough.
The first function of the lamp is to provide enough illumination for indoor photography. To ensure that the image quality is enlarged enough, ISO can't be improved casually when the indoor light is bad, and there must be extra lighting. When there is no condition to use studio lights, the ceiling light is your only choice. Especially in the wedding scene, the lamp is the most important equipment.
The second is to take pictures outdoors to fill the light. Outdoor photography needs lighting, and many times natural light can't meet the conditions of portrait photography. The excellent outdoor business people you see basically have extra light. You can use a reflector or ceiling lamp to fill the light. The reflector needs assistance, and the ceiling lamp does not need assistance, which can create clear eye light.