Sky-Watcher Virtuoso GTi 130P (S21210) Adapter 20") Diopter Adjustment Range: ±4

20") Diopter Adjustment Range: ±4 Twilight Factor 40 Relative Brightness: 16 Limiting Stellar Magnitude: Ideal: 12

*QHY600 uses the software digital binning for 2*2binning

Note: Not Compatible with SV25

39 arc seconds Resolution (Dawes): 0

Low Latitude: Designed for adjustment from 7～34 degrees (Latitude)

Sky-Watcher Virtuoso GTi 130P (S21210) Adapter 20") Diopter Adjustment Range: ±4Sky Watchers Virtuoso GTi collapsible tabletop Dobsonian is the ultimate combination of convenience, flexibility, and light gathering power now with Wi Fi! Ideally suited for both the beginner astronomy enthusiast looking for a first telescope and as a casual backyard travel alternative for the experienced observer, this small scope boasts big views and is the perfect camping companion for your dark sky getaways. Available in either 130 or 150mm