Refractor telescope aperture 70 mm focal length 900 mm focal ratio 1129 optical systems refractor fraunhofer achromatic max useful magnification 140 x tracking equatorial mount equatorial mount 1 eq1 tripod aluminium tripod minimum useful magnification 10 finderscope 6x24 eye piece 125 eyepiece type super plssl included in delivery 2x barlow lens star diagonal 125