Can be set: 35 times, 56 times, 175 times plus 1.5x positive mirror can be set 52 times, 84 times, 263 times plus 2x Extender can be set 104 times, 168 times, 525 times.Theoretical resolution: 1.842 angular seconds, which is equivalent to two objects that can be seen at a distance of 0.893 cm at 1000 meters.Basic Waterproof Function Means the Telescope can Cope with Small Rain Drops