SVBONY SV550 Triplet APO Telescope, 122mm F7 ED Glass Telescope for Adults High Powered, 2.5" Dual-Speed Focuser, 87mm Focus Travel Distance Refractor OTA, for Deep Space Astrophotography and Visual
The SV550 APO refractor is a compact refractor with 122mm aperture; f/7 focal ratio and 854mm focal length; a great travel telescope for astrophotography and observation; the OTA weighs 6.44kg/ 14.18lb; easy to carry out when fitting into the carrying case
The APO refractor features a 122mm aperture which gathers more light; and offers more clear and detailed images; suitable for deep sky photography and observation; and even some fainter deep sky objects; due to the higher limiting magnitude
The SV550 122mm adopts a FPL-51 triplet apochromatic lens structure which contains one piece of ED glass; the triplet lens provides better correction of aberration and greatly reduces chromatic aberration and enhance the clarity and sharpness
The gear ratio of the dual speed 2.5-inch toothed focuser is 1: 10; which makes it easy to achieve accurate focus; the dual speed focuser can provide two focusing speeds by using a set of co-axial knobs; for fast focusing and fine focusing
The length of the dovetail is as high as 300mm; it can maintain the balance to the greatest extent; and it will be more convenient in the adjustment process
