Magnification: 20x mirror
Lens structure: roof type (anti-sidelight 45 degree design)
Observation distance: 3 meters to infinity
Field of view: 250m/1000m (16°)
Eyepiece diameter: 16mm
Objective lens diameter: 18mm
Exit pupil distance: 3mm
Eye point distance: 9.6mm
Product size: 33X94 mm