The celestron nexstar 6 se computerised telescope has high quality schmidt cassegrain optics in a high performance altazimuth computerized telescope with a total weight of 30 lbs including the tripod the ultra portable 6 se features a precision optical system with 1500mm focal length f10 and offers 44 more light gathering than a 5 telescope the nexstar 6 se has all the same features as celestrons most advanced computerised goto telescopes including the revolutionary skyalign alignme