Sky-Watcher 0.77x Reducer/Flattener for Esprit 120 - S20209 Tele Vue Eyepieces The top opening can be

The top opening can be adjusted to a snug fit around the mount using a supplied 2 inch pony spring clamp

full height steel tripod with deluxe accessory tray

74 arc seconds Resolution (Dawes) 1

Sensitivity:

Its optimum image circle is 28 mm

Sky-Watcher 0.77x Reducer/Flattener for Esprit 120 - S20209 Tele Vue Eyepieces The top opening can beSky 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