•Tiny HD telescopes made by seiko.
•Eyepiece: 12mm Objective: 21mm
•Magnification: 10x optical magnification
•Ratio :8 times. Caliber :20 mm.
•Object diameter :20MM
•Field Angle :5.5 degrees
•Km horizon :96 m /1000 m
•Exit pupil diameter :2.5MM
•Exit pupil distance :10.3MM
•Final focusing distance :5M
•Dimensions: length 90cm, diameter 24mm, thickness 36mm
•Prism system: Paul Prism system.
•Lenses: Optical lenses.
•Function: Waterproof