Tripods are three-legged stands used to support various devices, most commonly cameras. They provide stability and help prevent blurriness in photos by keeping the camera steady during long exposures. Tripods come in various sizes and materials, making them suitable for different environments, from professional photography to casual use. In addition to photography, tripods are also used in other fields, such as surveying and astronomy. For example, surveying tripods hold equipment like theodolites, while astronomy tripods support telescopes for stargazing. Their design allows for adjustable height and angles, making them versatile tools in many applications.