Foundations 108. Understanding that studio light is essential indoors, you now know that it can ruin your shot if not lit properly or make a significant difference. Not only can you flatter who or what you are shooting, but you can alter the feel of your portrait by changing your lights. You have the choice of a light, cheery portrait or a serious and dramatic look just by your studio lighting. Understanding and know how to light indoors gives you the control of what you want to achieve.