Half Penta Prism is a half of Penta Prism. A Half Penta Prism is used to deviate the line of sight by 45° without inverting or reverting the image.
Half Penta Prism is a half of Penta Prism. A Half Penta Prism is used to deviate the line of sight by 45° without inverting or reverting the image. Half Penta Prism and Roof Prism are the most popular products in A-Star as volume producing.