Porro prism

A Porro prism is a type of optical device used in binoculars, cameras, and other instruments to invert and revert an image. It consists of two prisms arranged in a zigzag pattern, allowing light to travel through and change direction while making the final image upright and not reversed. This design enhances the field of view and depth perception for users. Porro prisms are known for providing better optical performance and are commonly found in high-quality binoculars, enabling a clearer and more natural viewing experience.