1.) Omnidirectional natural light 

 

 

2.) Directional natural key light (large windows that gives daylight direction, or point source)

 

 

3.) Natural light augmented by the inclusion of an artificial light source (in/out of frame) 

 

4.) Single artificial light source (use of only one color profile such as one household light bulb, tungsten, flash, lighting equipment, fluorescent, LED, halogen, candlelight, screen-glow, in/out of frame)

 

5.) Multiple artificial light sources with the same color profile (use of multiple lights that share the same color profile [several lights of the same kind] within a single image, in/out of frame)

 

6.) Multiple artificial light sources with divergent color profiles (use of multiple lights that do not share the same color profile [e.g. candle and screen] within a single image, in/out of frame)

 

7.) Experimental/Complex Artificial/Natural lighting (use of experimental techniques: e.g. flare, silhouette, trial and error)