Professional Astronomical Telescope Powerful Monocular Long Range Binoculars Moon Space Planet Observation Gifts for Kid Product introduction: F36050M is a small refracting astronomical telescope. It has the advantages of large aperture (50mm) and low price. It does not occupy a place. It is suitable for beginners who like astronomy. It is equipped with two eyepieces of different magnification and 1.5X magnification positive image mirror. It allows you to freely match and observe objects of different distances and sizes Factory configuration: Optical System:Refracting type Teleconverter:1.5X Objective lens diameter:50mm Eyepiece:H20mm/H6mm Optical aperture:50mm Focal length:360mm Ceiling mirror:90° Focal ratio:7.2 Magnification:18X/60X Tripod Aluminum:Alloy Main indicators: Refractive/focal length: 360mm, luminous aperture: 50mm 60 times, 18 times, 90 times, 27 times with 1.5x positive mirror Theoretical resolution: 2.000 angular seconds, which is equivalent to two objects at a distance of 0.970 cm at 1000 meters. Color of main lens tube: silver (as shown in the figure) Weight: about 1kg Outer box size: 44CM * 21CM * 10CM Viewing combination: 1.5x positive mirror H20mm eyepiece (full positive image) Rules for use: 1. Pull the support leg apart, install the telescope tube onto the yoke, and adjust it with large locking screws. 2. Insert the zenith mirror into the focusing cylinder and fix it with corresponding screws. 3. Mount the eyepiece on the zenith mirror and fix it with corresponding screws. 4. If you want to magnify with a positive mirror, install it between the eyepiece and the lens tube (you do not need to install a 90 degree zenith mirror), so you can view the celestial bodies.