Open Cylindrical (OC) Lighting  is a patent-pending technology available exclusively on Halumin, functioning much like a “physical lighting preset”. The OC design reshapes light from a variety of sources, including speedlights, studio strobes, and continuous LED lights, to form a consistent, narrow cylinder of isolated light around your subject.  At the same time, it flags the light off of the background and camera lens, creating a lighting layer that is easy and intuitive to control. This design allows you to create a wide range of lighting effects and moods without the need for additional equipment. It’s like a self contained photography studio for small subjects.