ExploreOne CF400 Blue Carbon Fiber Pan Handle AZ Mount Telescope 70mm 88-10072-CF. Viewfinder: Optical Specifications for ExploreOne CF400 Blue Carbon Fiber 70mm Pan Handle AZ Mount Telescope: Manufacturer: ExploreOne Color: Blue Finish: Carbon Fiber Objective Lens Diameter: 70 mm Focal Length: 400 mm Focal Ratio: f/5.7 Optical Coating: Refractor Package Contents: ExploreOne CF400 Blue Carbon Fiber 70mm Pan Handle AZ Mount Telescope ExploreOne 88-10072-CF: CF400 Blue Carbon Fiber Pan Handle AZ Mount Telescope 70mm