ASVIL Professional 70mm Refractor Astronomical Telescope with Tripod Low Night Vision Moon Watching Powerful Monocular for Kids Gifts

Function: You can see the round moon island. Tripod height: 38CM. Configuration: The focal length is 300mm, and the aperture is 70mm. It is equipped with two eyepieces: H6 (for viewing during the day) and H20 (for viewing the moon at night), and a 3x, 1.5x Barov lens. Magnification mirror: H6mm, H20mm multiple: 300/6 = 50 times, 300/20 = 15 times. If you choose a 3x Barov lens, the multiples are 50X3 = 150 times and 15X3 = 45 times; Calculation formula: objective lens focal length / eyepiece focal length * several times Barov multiple = maximum magnification, objective lens focal length / eyepiece focal length = magnification Installation sequence: first support the tripod. Then install the lens barrel. After fixing the lens barrel, install a viewfinder (used to find the target object initially) on the lens barrel, and then install the eyepiece (eyepiece 2 option 1). After finding the big target, use different eyepieces for debugging.