A 24-70mm lens is a standard zoom lens. This means that it offers a little bit of wide-angle, normal, and telephoto focal lengths all in one lens body. As a result, they are extremely versatile lenses, good for just about everything. And because they don’t cover too much of a focal range, they stay relatively compact when compared to zoom lenses that offer a larger range. This makes them easier to carry around and faster to zoom all the way in or out when needed.