The celestron nexstar 5 se computerised telescope has high quality schmidt cassegrain optics with a total weight of 28 lbs which includes the tripod it is ultra portable and features a precision optical system with 1 250 mm focal length f10 standard with premium starbright xlt coatings which offers 56 more light gathering power than a 4 model the nexstar 5 se includes a camera control feature which enables you to remotely take a series of timed exposures using your digital slr camera