The Skywatcher SW 102AR AZ4S 102mm Manual Refractor Telescope features "grab-in-go" design which makes it the logical companion to take with you for casual observing of land or sky at a moment's notice. Its ability to knock your socks off while viewing solar system favorites like Saturn, Jupiter and the Moon is a testament to the remarkable high contrast and richness of detail this instrument delivers to your eye. View distant terrestrial detail close up and personal including landmarks, animals and people. The Skywatcher 102AR 2-element, color corrected achromatic lense is fabricated to the highest optical standards from Grade-A Crown & Flint optical glass. Each lens set is individually pitch-polished and hand figured by a master optician ensuring premium optical performance. Each lens system is air-spaced with high transmission optical coatings. The Skywatcher 102AR-AZ4S offers 62% more light gathering than a smaller 80mm lens, this telescope excels at every astronomical and terrestrial endeavor. Jupiter's bands reveal ripples, whirlpools and discontinuities; the Moon shows additional crater detail, rills, fault lines, etc. that are simply indiscernible with smaller aperture scopes; deep-space objects start to display their essential structure like the beehive of stars surrounding the core of the globular cluster M13; emission nebulae exhibit extensions of glowing gases and dust filaments far from the central area of luminosity, plus the characteristic shape