First you should decide if you will use artificial or sunlight. If you are using sunlight you will rely on the Kelvin scale to identify the temperature of light and for that reason the color of light. The color of light is very important to keeping the colors you see around you. For example the warmer the light the redder the light will be, hence you might should choose the time you will head out and shoot photographs. Outdoor lighting provides so many different times to take images relying on your demand.