Catadioptric telescope aperture 150 mm focal length 1 800 mm focal ratio 112 optical system maksutov cassegrain max useful magnification 300 x tracking equatorial mount equatorial mount 5 pro neq5 pro synscan goto tripod steel tripod minimum useful magnification 21 finderscope 9x50 eye piece 125 included in delivery synscan controller star diagonal 2