The Leupold Gold Ring Compact 10 - 20 x 40 Spotting Scope uses a standard multicoated lens system to provide improved brightness and contrast, and the Twilight Max Light Management System delivers enhanced image clarity. The carbon fiber construction offers a light weight, durability and shock resistance, while the waterproof and fogproof design allows for use in most weather conditions. Leupold Gold Ring Compact 10 - 20 x 40 Spotting Scope Gray, 40mm - Scopes at Academy Sports