3D Digital Photography requires a dual-camera setup such that the left camera records the image as seen by the left eye, and the right camera records the image as seen by the right eye. For landscape photography, the subject matter is primarily a considerable distance away, so the camera lenses may be separated further apart than the three inch average normal human eye interocular distance. For subjects closer than six feet away, the inter-lens distance must be reduced.
Light painting begins right at dusk, and the first attempts generally produce an over exposed background, but the photographer benefits by being able to get a feel of the timing necessary to paint the primary subject. As the light levels diminish towards total darkness, the visual effects between background and subject change dramatically. When the moon rises on the horizon, the visual effects take on a totally different dimension, especially when clouds are present.