Sky-Watcher Flextube 400P SynScan GoTo Collapsible Dobsonian Telescope

Overview 16” (406 mm) Dobsonian-style Newtonian 1800 mm focal length (f/4.4) 2" Crayford-style focuser with 1.25" adaptor 4-element Plössl 25 mm and 10 mm 1.25" eyepieces 8x50 RA erect-image finderscope SynScan hand controller with 42,000 object database GoTo Dobsonian base The exciting new Sky-Watcher Dobsonian SynScan series is precision engineered instrument that will allow you to easily find and enjoy viewing night sky treasures, such as Planets, Nebulae, Star Clusters, Galaxies and much more. With its patented collapsible tube design, these Dobsonians are truly the ultimate in portability and performance. The elegant truss tube design was carefully engineered to combine ease of use, extreme portability and consistent performance in an affordable package. Unlike other truss tube designs, the SkyWatcher Collapsible Dobsonian does not need to be disassembled between uses. It transports as two compact pieces that can be assembled and ready to use in just seconds! It is easy to collimate once set up, and it holds its collimation throughout the evening! The patented Tension Control Handle allows users to add or reduce tension, thereby increasing or decreasing the friction between the optical tube and the sideboards. The SynScan™ AZ hand control allows you point your telescope at a specific object, or even tour the night sky at the touch of a button!! The user-friendly menu system allows automatic slewing to over 42,900+ objects. Even an inexperienced astronomer can master its variety of features in a few observing sessions. The patented dual encoder design allows the telescope to be moved manually whenever the user wishes - but with no need for re-alignment! The Sky-Watcher Dobsonian SynScan series combines the convenience and affordability of the traditional Dobsonian with the convenience of a computerized Go-To telescope. SynScan™ AZ hand control SPECIFICATIONS: Power Supply: 10 to 15 V DC 1Amp, 2.1mm Plug (Center positive) Motor type: DC Servo Motors Resolution: Motor encoder: 1,620,000 counts per revolution, Main axis encoder: 11,748 counts per revolution Slew speeds: 1.0X, 2.0X, 8X, 16X, 32X, 200X, 400X, 600X, 800X, 1000X Tracking Rates: Sidereal, Lunar, Solar Tracking Mode: Dual Axes Tracking Alignment Method: Brightest-Star Alignment, Two-Star Alignment Database: 25 user defined objects. Complete M, NGC and IC catalog, partial SAO catalogues, total 42,900 objects Go-To Pointing Accuracy: Up to 5 arc min Specifications Optical Design: Newtonian Reflector Aperture (mm): 406 mm (16 in) Focal Length: 1800mm Focal Ratio: f/4.4 Focal Length of Eyepiece 1 (mm): 25 mm Focal Length of Eyepiece 2 (mm): 10 mm Finderscope: 8x50 RA erect-image finderscope