Refraction type/focal length: 360mm, clear aperture: 70mm4. If you want to magnify with an erect lens, install it between the eyepiece and the lens barrel (no need to install a 90- lens), so that you can view the celestial body(see the manual for specific operations)Viewing combination: 1.5x erect image lens + H20mm eyepiece + finder lens (complete erect image)Weight: about 1.9 kgMain color: silverFinderEyepieces: H20mm, H6mm two eyepieces 1.5x erect mirror 90 mirror Retractable tripodCarton size: 45CM * 23CM * 11cm FilterFor novices such as students and children, suitable magnification, simple functions, and easy operation are the best choices. Excessive requirements for high magnification, staring too far to see clearly, such a requirement is almost to meet, it is counterproductive to the child Interest to exploreTheoretical resolution: 2.000 arcseconds, which is equivalent to seeing two objects 0.970 cm apart at 1000 meters.Suitable size, portable and easy to operate, although it is used by students and children, the color does not need to be colored, the black and silver combination shows mystery and , so that children's eyes are protected from harm, the product quality is good, and the standard optical glass lens is not easy to break 2. Insert the lens into the focusing and fix it with the corresponding screws. 3. Install the eyepiece and the finder on the mirror, and fix them with the corresponding screws. Chinese and English manualCan be grouped 60 times, 18 times, plus 1.5x erect lens can be grouped 90 times, 27 times.1. Pull the supporting legs apart, install the telescope on the yoke, and adjust it with a large lock screw.