I am a photography enthusiast, every weekend will carry the camera to the field to take pictures. Sometimes one to several days. After a time I was with a couple of photography enthusiasts in the online appointment time, we go up to the mountains to take natural scenery. A photography enthusiast with Light tent. So I asked Light tent what do, the pictures have what effect. He patiently explained to me that was photographed by Light tent, the pictures are not affected by the objective environment, picture perfect. For after the mountain came back I told his wife to the photographic equipment stores also bought a Light tent.