60ED product parameters Telescope model: 60ED Doublet air double separation compound achromatic Lens: HOYA, CDGM Color: black / white / yellow / gray Material: aluminum alloy Caliber: 60mm Focal ratio: f/5.5 Focal length: 330mm Coating: Full surface broadband multilayer coating Resolution: 1.93" Ultimate star level: 11.4mag Standard equipment: holding hoop, VIXEN-style dove-tail plate, star-seeking mirror slot, 2 "to 1.25", carrying handle, CAA Options: 1x flat field mirror, M48-T2 ring, 2" zenith mirror, eyepiece, Baader film filter Focuser: 2" two-speed gearing focuser Interface: 2" connector Length (hood fully extended): 276mm Length (hood fully retracted): 237mm Weight: 1.75kg, including packaging 2.68kg, outer box size 36cm * 30cm * 18cm