Adjustable all-round viewing angle, observe as one pleases. Helical turbine drive supports 360° all-round adjustment: -60° to +60° altitude adjustment, all-round visual adjustment angle to meet your visual observation needs. Fine-tunning control lever to meet your adjustment efficiency in different scenarios.The mount holds the telescope steady. The locks on each axis work well and the slow motions are smooth. The slow motion controls make it easy to zero in on an object and then keep it from drifting out of the eyepiece as the earth turns. Easy to set up and use, well constructed with good knobs and finishes.Ensure you can archive your visual observation operations and don't need to reajust if you want to observe the same object next time. SV188P uses a high-reflective dielectric coating that can achieve a reflectivity of 99%, more light means you will get brighter pictures. When the telescope is pointed at or near the zenith (directly overhead), mirror diagonal telescope allows for more convenient and comfortable observation. Made of aluminum alloy,strong and durable, long service life.