Catadioptric telescope aperture 102 mm focal length 1 300 mm focal ratio 1127 optical system maksutov cassegrain max useful magnification 204 x tracking altazimuth mount altazimuth goto synscan az s tripod aluminium tripod features red dot viewfinder minimum useful magnification 14 eye piece 125 etx eyepiece type kellner included in delivery star diagonal 125 synscan controller