Art No. : PD001 Prism Diagonal 45°             Art No. : PR001 Prism Diagonal 90°

GSO 1-1/4" Erect Image Diagonals are an Amici prism design. This design allows you to look into the telescope at a 45° and 90° angle, at images that are oriented properly, meaning the image is upright and correct from left to right.