Optical System: Honders Advanced Catadioptric Type Photographic Optics
D=200mm, F=400mm, F/D=2
Pinpoint Image Diameter：30mm
Telescope Weight: 13.46kg
Telescope Length: 686mm
Telescope Diameter: 242mm
Central Obstruction: 80mm(40% of aperture diameter)
Focusing Stroke: 10mm
