80400mm OTA refractor telescope 1),aperture:80mm,f/5 2),lens:FMC 3),2" ... detailed product description80400mm OTA refractor telescope1),aperture:80mm,f/5(focal length:400mm)2),lens:FMC achromatic broadband green3),2" crayford focuser ... with tripod8.shockprof packaging AQUILA mully metal 80400mm OTA refractor telescope