POWER:20x-60x
OBJ.LENS DIA.:80mm
TYPE OF PRISM:Porro/BAK4
PRISM COATING:NO
NUMBER OF LENS:8pieces5groups
LENSCOATING:BMC
FOCUS SYSTEM:Cent
FOCUSING LENS:Int
EXIT PUPIL DIAMETER:4mm-1.3mm
EXIT PUPIL DIST.:14mm
FIELD OF VIEW:94.2ft-48ft
MIN.FOCAL LENGTH:6m/18ft
RELATIVE BRIGHTNESS:16-1.7
TWLIGHT INDEX:40-69.3
RESOLUTION:≤2.8°
ZOOM SYSTEM:
WEATHER PROOF:YES
WATER PROOF:1.5M/3min
NITROGEN FILLED:YES