Diffuse, uniform light that comes from the same axis of the camera.

The object is illuminated from all the directions with diffuse light and with high intensity light falling on the object with a very little angle. In this way we attain to eliminate shades and reflections, smoothing the textures and highlighting outlines and surface defects. 

Indicated for highlight outlines, surface defects, mark sensing of different colors, characters and detection of everything what as much supposes a change of color in smooth surfaces, spherical, rough or with brightness.