This telescope is like the transistor radios in the 60's, more numbers are better. Back then they would install totally nonfunctional transistors, and boast that they were 18 transistors (maybe 6 functional) and jack up the price.Celestron specifies 1000mm focal length, with a 700mm tube, this is impossible...magic? No.Add a lens at the bottom of the focuser, and voila ! But then you are only using the center 2/3 or less of the mirror, not the whole thing.Collumation (alignment)is impossible with this pig. Truly a POS