Your satisfaction is our greatest pursuit. If you have any questions, please feel free to contact us, we will reply you within 24 hours.Factory configuration:Main barreltripodAccessory trayHammer straight locking knob3X multiplierZenith mirrorFinderscope4/10 / 20mm eyepieceOptical System: RefractiveCaliber: 60mm (2.4")Focal length: 700mmm Focal ratio: 11.67Eyepiece: 20mm (35x) -1-1 / 4", 4mm (175x) -1-1 / 4"Limit magnitude: 11.4Barlow mirror: 3x-1-1 / 4" Finderscope: 5x24Zenithal mirror: 11.4Barlow mirror: 1x-1-1 / 4" Finderscope: 5x24Zenithal mirror: 11.4Barlow mirror: 11.4 .25" Bracket: ground level theodoliteTripod: AluminumOptical coating: Multi-layer coatingObservation steps:1. The main lens barrel needs to be fixed on a tripod, taking care not to shake it as much as possible.2. For the first time, use as far as possible to observe the still life in the distance, such as the moon and iconic buildings.3. Use the main lens barrel to lock the observation object first, and then link other lenses.4. To lock the observed object, the focus knob needs to be adjusted to be clear.