Sky-Watcher 0.77x Reducer/Flattener for Esprit 120 - S20209 2" Diagonals The Star-Chair IV weighs only

The Star-Chair IV weighs only 18 lb (8

25" Laser Collimator

Heavy Duty Side Plates - More rigid with more material provides less vibration while imaging

allowing you to make the most of your telescope

This iPolar polarscope introduced by iOptron is available as a separate product

Sky-Watcher 0.77x Reducer/Flattener for Esprit 120 - S20209 2" Diagonals The Star-Chair IV weighs onlySky Watcher 0. 77x Reducer Flattener for Esprit 120 Sky Watcher 0. 77x Reducer Flattener Only for the Esprit 120 Focuser Compatible with both APS C and full frame sensors 34 mm fully illuminated field is available Also good to use for full frame cameras Provides a 95 mm back focus Or, 55 mm when back focus spacer and M48 ring installed Lowers f ratio from native f 7 (840 mm) to f 5. 4 (647 mm) Reduces exposure time by 68% compared to native f 7 3. 18