Dome security cameras are named for their dome like shape. Dome cameras are commonly used in surveillance systems inside of homes, casinos, retail stores, and restaurants. This is because dome cameras are more fashionable and blend in very well to their surroundings. Because of their dome shape, it is difficult for someone to tell which direction the lens of a dome camera is actually aiming.
Bullet cameras are limited to a fixed focal length lens. While bullet cameras are good for small spaces, the images may have slightly cut-off corners because the camera shape and design can interfere with the actions the camera lens and filter.