Deciding on your location beforehand is necessary as that dictates the equipment you’ll need. If shooting in a studio, you need to think of the lenses you would use for the amount of space available in your studio. If you have a small studio, you may only be able to use a 35mm or a 50mm lens for portraits. A 24-70mm would be ideal for a small space, but you need to consider any distortions if you’re shooting portraits at close range using a short focal length.