Telescope is a professional universal astronomical telescope for adults begginers and kids, it can be a good observation of planets and terrestrial objects, like moon, star clusters,birdwatching Observation step 1. Aim at the subject to be observed, adjust the appropriate height and initial angle, and be careful not to shake as much as possible. 2. The finder mirror is coaxial and parallel to the main lens barrel. Look at the finder mirror and adjust the up, down, left, and right angles through the tripod handle to find the position of the observation object. 3. Lock the observation object, watch the main tube eyepiece, and adjust the focus wheel to clear. Specification Product Name: Astronomical Telescope Light diameter: 70mm (2.7 ") Focal length: 300 mm Coke rate: F = 4.28 Eyepiece multiple: 20mm eyepiece is 15 times, 6mm eyepiece is 50 times Magnification factor: 150X Mirror: 45 degrees (exactly the same) Limiting magnitude: 11.28 Main mirror color: orange Bracket: telescopic three-section aluminum tripod Height of tripod: contraction length 425mm, extension len