Astronomical Telescope Refractor 70/300mm, FMC High
Astronomical Telescope Refractor 70/300mm, FMC High Transmission, Magnification 15-150X, Adjustable Tripod, Phone Holder & Bluetooth Remote Control, for Beginners in Astronomy, Adults Optical design: refractorOpening: 70 mm.Focal length: 300 mm.Focal length: f/4.29.Eyepiece 1: 20mm – 15x magnificationEyepiece 2: 6mm – 50x magnificationFinder scope: 5 x 24.Zenith mirror: 90° star zenith mirror.Optical coating: fully multi-coated broadband green coatingBarlow lens: 3x / 1.5x.Exit pupil: 2.2 mm.Distortion: 4.9%.Light gathering capacity: 100x (opposite to the naked eye).Resolution (Rayleigh): 1.98 arcsecondsResolution (Dawes): 1.66 arcseconds secondsImage resolution: 162 lines/mm.Field of view: 1.30°.Linear field of view: 18.59 m on 1000 yardsLimit size: 11.7Mount type: Old AzimuthVertical adjustment:...