Roof prism binoculars are a type of binoculars that use a roof prism system to create a compact and lightweight design. This configuration allows the binoculars to be more streamlined, making them easier to carry and handle. They are popular for outdoor activities like birdwatching, hiking, and sports events due to their portability. These binoculars typically offer a straight-line optical path, which helps maintain a slim profile. Roof prism binoculars come in various magnifications and objective lens sizes, providing users with options to suit different viewing needs. They are often waterproof and fog-proof, enhancing their durability in various weather conditions.