Free Astronomy Magazine May-June 2018

Dall Kirkham 350 mm f/20 23% obstruction Supremax 33 precision optics from Schott Carbon structure - 18-point floating cell Motorized Focuser 2.5" Feather Touch Ventilation and suction system of the boundary layer Weight 34 kg. Also available in the versions Newton f/4.1 with 3" corrector Ritchey Chrétien with f/9 corrector/reducer Cassegrain Classic f/15 - - - phone +39 01599521