Will wallpaper reflect light when shooting in the background?

If the object doesn't reflect light, the camera can't shoot anything. Almost everything reflects light, so the camera can record it. Our eyes can see things.

Presumably, the landlord asked, "Will it be seriously reflective?"

As long as the light is used reasonably, this phenomenon will not occur. Even if the light is too strong, you can increase the shutter speed or narrow the aperture to achieve a reasonable exposure effect. Mainly light is better than control.