the scope spec as below :- heheheheheh ^^
Field of view, deg
40°
Lens system
26.8mmF/1.2
Focus range, m
0.25 / 10” to infinity
Eye relief distance, mm
15
Diopter setting, D
+5/-5
Overall dimensions, mm
163x76x55
Weight w/out headgear, g/oz
384/ 13.5
Power supply
1 AA batteries 1.5V/1 CR123 Batteries
Estimated battery life w/out IR, 73°F, hour
AA-up to 40, CR123-up to 80
GEN III / GEN II IMAGE INTENSIFIER TUBES
Classification
OMNI III
OMNI II
Photocathode type
18mm GaAs
18mm S-25
Photocathode sensitivity, typical,μA/lm
≥1800
600-900
Resolution, typical, lp/mm
64-72
48-58/57-70/60-72
Luminous gain, typical, fl/fcd
45000-65000
19000-30000
Signal-to-noise ratio, typical
23:1 or better
20:1 or better
FOM, typical
≥1500
≥1150-1350
Tube reliability standard, hour
12000
10000
Keep time, typical, year
15
10
Warranty, year
2
EFFECTIVE DISTANCE
Detection range, approx., m/yard
-quarter moon
up to 300/330
up to 200/220
-cloud cover
up to 250/275
up to 125/ 140
Recognition range, approx., m/yard
-quarter moon
up to 225/245
up to 145/160
-cloud cover
up to 175/190
up to 115/125
5mW IR illuminator, approx., m/yard
up to 30/12
ENVIRONMENTAL DATA
Operating temperature, °C/°F
−40° to +50°/-40° to +122°
Storage temperature, °C/°F
0° to +50°/32° to +122°
Immersion, hour
1 meter for 0.5 (Optional)
Humidity, %
up to 98%
