Other Features | - 65 mm Refractor Spotting Scope, Straight through Viewing Angle, Zoom Eyepiece, Sight Tube for Quick Targeting, Soft Carrying Case, 386 mm Focal Length, 5.94 Focal Ratio, 7-21 Zoom Eyepiece 1, 154x Highest Useful Magnification, 9.29x Lowest Useful Magnification, 11.6 Limiting Stellar Magnitude, 2.14 arc seconds Resolution (Rayleigh), 1.78 arc seconds Resolution (Dawes), 86x Light Gathering Power (Compared to Human Eye), (27.2 m at 18x, 11.58 m at 55x) Linear Field of View at 1000 yards, Near Focus (6.09 m at 18x), 406 mm Optical Tube Length, Portable and Durable Refractor Design, Great All-around Optical Instrument, Observing Nature and Long Distance Spotting, Green Rubber Optical Tube allows for Subtle Observation in any Nature Environment, 35 mm Camera T-adapter Supplied
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