Marine Navigation Waterproof Binoculars 7X 50 10×50 Binoculars Telescope with Rangefinder and Compass

TYPE 10X50 7X50
BODY STYLE SEMI-AROMATIC THERMOPLASTIC BODY
OBJECTIVE DIAMETER 50mm ± 1mm
FIELD ANGLE 6.5° ± 5%
EXIT PUPIL DIA 5mm ± 10%
NEAR FOCUS 7m
EYE-RELIEF 16.16mm
RELATIVE BRIGHTNESS 25
RESOLVING POWER 5.6″
FOCUSING SYSTEM CENTER FOCUS