Space Astronomical Telescope, Professional 150X 90X 45X Kids Telescopes 70mm Refractor Telescope for Kids with Tripod Educational Toys for Astronomy Beginners Children Educational and Gift

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About Space Astronomical Telescope, Professional 150X 90X

Features: - Model: Astronomical telescope - Material: ABS acrylic + aluminum alloy + optical glass - Color: Yellow+Black+Silver - Weight: 2kg Package Weight - Aperture: 70mm (2.4 inch) - Focal Length: 300mm - Aluminum Tripod : The most highest 120cm - Eyepiece: H6mm, H20mm - 3X the Barlow lens - 1.5X erecting eyepiece Note: This maximum magnification: 150X (lens focal length / eyepiece focal length x Barlow multiplier = maximum magnification) About Multiples: - Equipped with eyepiece: H6mm, H20mm, multiples are 300/6 = 50X, 300/20 = 15X, ( F12mm=30X) - If choose 3X Barlow lens together, multiples are 50 x 3 = 150X, 15 x 3 = 45X, 30x 3 = 90X - Plus 1.5X the positive lens again, multiples are 50 x 1.5 = 75X, 15 x 1.5 = 22.5X, 30X 1.5 =45X The formula: - Objective lens focal length / eyepiece focal length x Barlow multiplier = maximum magnification - Objective lens focal length / eyepiece focal length = magnification Installation: Install tripod first, and then attached eyepiece (H20mm or H6mm), moon mirror (can be installed or not, it is recommended to install when there is strong light) Package Contents: 1*telescope, 1*H20mm eyepiece, 1*H6mm eyepiece, 1*F12mm eyepiece,1*1.5X erecting eyepiece, 1*3X barlow eyepiece,1*moon mirror, 1*dust cover, 1* Tripod.