TEC APO 140 f/7 Fluorite Apochromat - TEC - Telescopes
TEC APO 160 f/7 Fluorit Apochromat - TEC - Teleskope
APO250VT F/8.8
APO140FL F/7
Amazon.com: MIZAR-TEC astronomical telescope refractive aperture 70mm focal length 500mm vertical and horizontal fine motion device with mount TL-750 : Toys & Games