The Celestron Hummingbird Micro Spotting Scope is ideally suited for travel being compact and will easily fit into a pocket shoulder bag or carry on luggage with ease. This spotting scope is perfect for traveling birders as a more travel-friendly alternative to a full-size spotting scope. The lowest magnification level can also serve as a substitute for a binocular. The waterproof and nitrogen filled construction of the Hummingbird keeps it protected against wet weather, humid conditions, and other environmental challenges. The durable armor works to keep the Hummingbird protected against bumps and jolts both during transport and in the field. Features Tripod/monopod/window mount adaptable providing a variety of options for viewing Easily secured to a stable platform for comfortable long-duration or long-distance viewing Waterproof and nitrogen filled construction Suitable for all weather conditions Small and compact, easy to carry 9-27x magnification range spans binoculars and spotting scopes ED lens optical system provides sharp, clear images with vivid, well-managed colour 9.8 ft. (3m) close focus satisfies birding field optic requirements Includes a carrying case with belt and shoulder straps An eyepiece cover and an objective cover with instruction manuals Specifications Magnification: 9-27x Objective Lens Diameter: 56 mm (2.2") Eyepieces: 9-27x Angular Field of View: 4.2 - 1.9 degrees Linear Field of View (@1000 yds) / @1000 m) :663 - 297 ft (73 - 32 m) Focal Length: 200 mm (7.87") Exit Pupil : 6.2 - 2 mm (.24 - .07") Eye Relief :15 mm (.6") Close Focus:9.8 ft (3 m) Twilight Factor: 22 - 39 Relative Brightness: 38 - 4 Lens Coatings: Fully Multi-Coated Prism Glass (Type) : BaK4 Prism Coatings : Phase Coated Weight : 20.8 oz (590 g) Environmental Protection: Waterproof Nitrogen Filled : Yes Tripod Adaptable: Yes Carrying Case: Padded woven nylon Dimensions: 208 mm x 127 mm x 68 mm (8.2" x 5.0" x 2.7")