All of our other accessories - brand name - Portable F36050 90X Zoom Astronomical Reflector Telescope Kit with Professional Tripod Highlights F36050 Portable 90X Zoom Astronomical Reflector Telescope Kit with Professional Tripod Refraction/focal length: 360mm, optical aperture: 50mm , can be set 18X 27X 60X 90X Theoretical resolution: 2,000 arc seconds, tripod up to 35cm Active aperture: 50mm (2.4"). Focal length: 360mm f/7. Tilting mirror: 90 The 0.965 inch standard package includes: Eyepiece: SR4mm, H20mm, Barlow lens 3x.The maximum magnification of the item: 90 times (lens focal length / eyepiece focal length * several times baro = maximum magnification ) Telescope adjustment - The beginner telescope can be easily adjusted to different angles, allowing you to see the starry sky and landscape clearly.Easy to assemble and disassemble.Specification: Item: F36050 Astronomical Telescope Clear Aperture: 50mm (Approx. 2.4') Focal length: 360mm (f/7) degree Lens Len: 90 degree Height aluminum tripod: 38cm Distinguishability: 2,000 arc second (Theoretically speaking, it is able to distinguish two goods between 0.97cm over a distance of 1000m.) Max multiples: 90 times ---- Being able to see the moon clearly For other possible multiples: (focal length is 300mm) H 6mm eyepiece only = 360/6 = 60 times .Compared with mount lens 1.5 times = 50 * 1.5 = 90 times (ideal for observing the moon at night.) H20mm eyepiece only = 360/20 = 18 times. Matched with mount lens 1.5 times = 18 * 1.5 = 27 times (good for daytime obedience observation, such as bird watching, animal watching, etc.) Package includes: 1 set of beginner astronomical telescope