Details Status: Focal Reducer: 0.5X Thread Interface: M28.5X0.6 Pitch Material: Metal Lens Material: Optical Glass Lens Coating: Blood Band Coating Features: Reduces focal length ratio Increases the viewing range Optical lens can dissipate more light The focal reducer lens makes the image appear brighter Package includes: 1 x 1.25 telescope Cal Reducer 0 .5X