Celestron C90 Maksutov Cassegrain Spotting Scope

    Specifications Magnification: 39x (with included eyepiece) Objective Lens Diameter: 90mm (3.54") Eyepieces: 32mm Plössl (1.26") Angular Field of View: 1.3° with included eyepiece Linear Field of View (@1000 yds) / @1000 m): 68 ft (20.7 m) with included eyepiece Focal Length: 1250mm (49") Exit Pupil: 2.3mm (0.1") with included eyepiece Eye Relief: 20mm (.78") with included eyepiece Close Focus: 15 ft (4.6 m) with included eyepiece Twilight Factor: 59.2 with included eyepiece Relative Brightness: 5.3 with included eyepiece Lens Coatings: Multi-Coated Prism Glass (Type): BaK4 Prism Coatings: N/A Weight: 74 oz (2,100 g) Environmental Protection: Water Resistant Nitrogen Filled: No Tripod Adaptable: Yes Carrying Case: Black heavy woven nylon backpack Camera Adaptable: Yes Dimensions: 400mm x 260mm x260mm (15.7" x 10.2" x 10.2") with include eyepiece Included Items: Plössl 32mm eyepiece45° diagonal8x21 finderscopeObjective Lens CoverEyepiece L