25X30 Long Brass Nautical Monoscope Telescope TelescopicEye Vision Glass

Item specifications:*Power:25X*Objective Lens Aperture (mm):30mm/1.20in.*Lens Material: Bk7 & Blue lens*Size coalition:140mmX 35mm*outspread:340mmX35mm(1.4*5.3in)*Exit Pupil Diameter (mm): 2.5*Field Of View (m):270 ft. at 1000yds.*Focus adjustable (Y/N): Y /6 inches to 13 inches*Weight:480gHow to use your telescope:The  scope is folded and stored as in FigurePackage included:-1 telescope-1 bag　-1 cleaning cloth