Telescope, 70mm/300mm Astronomical Refractor Telescope with Tripod & Finder Scope, Portable Telescope for Kids Beginners Adults Graduation GiftsFeatures:*By playing with telescopes, children can enhance their interest in astronomy and technology, and play an important role in guiding and cultivating children's interests.*Through the practical operation of the telescope, the child not only learns to adjust the telescope, but also learns a lot of related Knowledge, it is natural to have a sense of accomplishment and enhance children's self-confidence.Product Specifications:Optical system: RefractionObjective lens diameter: 70mmFocal length: 300mmFocal Ratio: 4.29Eyepiece: 6mm 20mmBarlow Mirror: 3xErect mirror: 1.5 timesFinder: 5x24Zenith mirror: 0.965 inch Zenith mirrorMain mirror length: 300mmOptical Coating: Multilayer CoatingLimit magnitude: 12Resolution (Rayleigh): 1.74 arcsecondsResolution (Duchenne): 1.45 arc secondsPhoto resolution: 162/mmConcentration Power: 131xField of view: 1.2°Linear Field of View: 18.59mTripod: aluminum alloy tripodTotal weight: 1.65kgPacking List:1*Main lens barrel1*Starfinder1*Finder frame1*Mobile phone holder2*Extender1*Tripod1*Nebula filter2*HD eyepieces1*Zenith mirror1*Sun Bard Film1*Nebula filter